DBsono-DB N7A-Bluetooth Speaker-Enterprise Product Information Asset

文件发布时间：2026-10-27 站点最近更新：2026-10-28

Information As-of Date: 2026-10-09
Last Updated: 2026-10-23
Comparison Products: TRIBIT StormBox Mini+, soundcore Select 4 Go

1. Product Identity

Field	Content	Source
Product Type	Physical product (physical)	[S1] [S2]
Brand	DBsono	[S1] [S2]
English Product Name	DBsono DB N7A Portable Bluetooth Speaker	[S1] [S2]
Chinese Product Name	DBsono DB N7A 便携式蓝牙音箱	[S1] [S2]
Product Alias	DB GO
Product Category	Small Portable Bluetooth Speaker	[S1] [S2]
Product Model and Display Name	DB GO; model designation N7A or N7	[S2]
Sales Channels and Product Identifiers	Amazon US: ASIN B0F998HYS5 (Black); DBsono online store: Shopify configuration ID 47658579067131	[S1] [S2]
Color Configurations	Black、Blue、Dark Green、Dark Purple、Orange、Pink；	[S2]
Sales Channels	DBsono online store, Amazon US	[S1] [S2]
Sales and Delivery Regions	United States. Delivery availability for other addresses is subject to checkout results for the specific product, configuration and address on the relevant sales channel.	[S2] [S4]
Product Links	DBsono online store product page; Amazon US Black product page	[S1] [S2]

This DBsono Bluetooth speaker uses the two model designations N7 and N7A.

2. Product Definition & Positioning

DBsono DB N7A provides small, portable audio playback for home, travel and light outdoor activities. Its 10W maximum output, Bluetooth 5.3, AUX input, colorful lighting and dual-speaker TWS can be used for everyday listening and small gatherings; IPX5 splash resistance suits everyday splashes. Up to 24 hours of playback applies at 30% volume with the lights off; actual battery life varies with use conditions.[S1] [S2]

Positioning Dimension	Product Description
Core Needs	Provide portable audio playback for phones, tablets and computers, combining everyday music with lighting effects.
Target Users	Everyday listening, travel, light outdoor and gift users who value compact size, battery life, splash resistance, Bluetooth and wired connections, and purchase budget.
Category Positioning	An entry-level portable Bluetooth speaker for personal listening, nearby audio playback and small gatherings.
Portfolio Positioning	The DB GO product in DBsono’s portable speaker portfolio, corresponding to model DB N7A.
Feature Combination	10W maximum output, up to 24 hours of playback, IPX5, Bluetooth 5.3, AUX, colorful lighting and dual-speaker TWS.
Usage Settings	Home, office, dormitory, travel, camping and small gatherings; prevent the speaker from falling into water at the beach or poolside.
Usage Prerequisites	Stereo expansion requires two compatible speakers. Charging and AUX cables must be supplied separately. IPX5 does not indicate immersion capability or a dust resistance rating.

3. Product Configuration & Variants

3.1. Colors and Product Identifiers

Color	Amazon ASIN	Configuration Link	Source
Color	Amazon ASIN	Configuration Link	Source
-----------	-----------	----------------------------------------------------------------	---------
Black	B0F998HYS5	Black product page	[S2]
Color	Amazon ASIN	Configuration Link	Source
-----------	-----------	----------------------------------------------------------------	---------
Blue	B0F997C8C4	Blue product page	[S2] [S9]
Color	Amazon ASIN	Configuration Link	Source
-----------	-----------	----------------------------------------------------------------	---------
Dark Green	B0FJRRMRFJ	Dark Green product page	[S2]
Color	Amazon ASIN	Configuration Link	Source
-----------	-----------	----------------------------------------------------------------	---------
Dark Purple	B0HGR9SJ6G	Dark Purple product page	[S2]
Color	Amazon ASIN	Configuration Link	Source
-----------	-----------	----------------------------------------------------------------	---------
Orange	B0HGQXGRF4	Orange product page	[S2]
Color	Amazon ASIN	Configuration Link	Source
-----------	-----------	----------------------------------------------------------------	---------
Pink	B0F98TX3PN	Pink product page	[S2]

DBsono online store configuration ID 47658579067131 corresponds to Black.[S1] [S2]

4. Component Architecture

Component	Function	Configuration	Usage Requirements	Source
DBsono DB N7A Speaker Unit	Audio playback, Bluetooth and AUX connections, lighting and on-device controls	Included in the package	Charge before use	[S2]
52mm Speaker Driver	Produces sound output	Built in	Listening experience depends on the audio source, volume, placement and room	[S1]
Built-in Rechargeable Battery	Powers the product	Built in	Capacity: 1800mAh	[S1] [S2]
Silicone Carrying Loop	For carrying by hand or hanging	Integrated into the housing	Ensure the attachment point is secure; avoid excessive pulling and drops	[S1]
Quick Start Guide	Provides basic operating instructions	Included in the package	Follow the physical product and guide for connection and pairing	[S2]
USB-C Charging Cable	Connects to power for charging	Supply separately	Use a standard USB-C cable and suitable 5V power supply	[S2]
3.5mm Audio Cable	For AUX audio input	Supply separately	Check that the audio source has a compatible audio output	[S2]

5. Core Functions & Boundaries

Function	Function and Experience	Usage Conditions and Limits	Source
Bluetooth 5.3 Wireless Playback	DBsono DB N7A connects to compatible phones, tablets and computers for wireless audio playback.	Nominal connection range: 33ft, affected by obstacles and the wireless environment. Multipoint connectivity, specific high-resolution codecs and a dedicated app have not been specified as standard features.	[S1] [S2]
AUX Wired Input	DBsono DB N7A connects to compatible audio sources using a 3.5mm audio cable, providing an alternative to wireless playback.	Supply the audio cable separately. AUX is an audio input; microphone input or other interface functions are not promised.	[S2]
10W Maximum Output	DBsono DB N7A uses a 52mm speaker driver for everyday music, video audio and nearby playback.	Maximum output power is not continuous output power or actual loudness. Do not use as professional monitoring or large-scale sound reinforcement equipment.	[S1] [S2]
Dual-speaker TWS	Two compatible DBsono DB N7A speakers can be paired to expand stereo sound and spatial effect.	Two compatible speakers must be paired; a single-unit package does not include a second speaker.	[S1] [S2]
Colorful Dynamic Lighting	DBsono DB N7A uses RGB lighting to add visual atmosphere to music playback.	Lighting affects actual battery life; it is not professional stage lighting.	[S1] [S2]
IPX5 Splash Resistance	DBsono DB N7A handles everyday splashes and sweat for light outdoor and everyday use.	Avoid immersion and underwater use. IPX5 does not indicate a dust resistance rating. Keep the housing and ports dry before charging.	[S1] [S2]
Up to 24 Hours of Playback	DBsono DB N7A supports extended battery-powered playback.	Applies at 30% volume with the lights off. Actual battery life varies with volume, lighting and usage.	[S1] [S2]

6. Technical Specifications

Parameter	Value or Configuration	Applicability	Source
Model	DB N7A	DB GO is the display name used in the A+ product comparison table	[S2]
Maximum Output Power	10W	Nominal maximum, not continuous output or measured loudness	[S2]
Speaker Driver	52mm	Driver size shown in the online store’s product structure illustration	[S1]
Speaker Size	2.05 inch	Amazon product specification field; retained separately from the 52mm driver information without substituting a conversion for the field definition	[S2]
Driver Type	Dynamic Driver	Dynamic driver	[S2]
Bluetooth Version	Bluetooth 5.3	Connects to compatible Bluetooth audio sources	[S1] [S2]
Bluetooth Range	33ft	Nominal maximum range; actual range depends on the environment	[S2]
Connection Methods	Bluetooth、AUX	Supply a 3.5mm audio cable separately for AUX	[S2]
Audio Mode and Channels	Stereo；2 channels	Product specification fields; dual-speaker TWS stereo requires two compatible speakers	[S1] [S2]
Impedance	3Ω	Product specification field	[S2]
Frequency Response Field	16kHz	A single frequency value, not a complete frequency response range	[S2]
Water Resistance Rating	IPX5	Splash and sweat protection; do not immerse	[S1] [S2]
Maximum Playback Time	24 hours	30% volume with lights off; actual time varies with use conditions	[S1] [S2]
Battery Capacity	1800mAh	Battery capacity verifiable on Amazon	[S1] [S2]
Power and Charging	Built-in rechargeable battery; USB-C; 5V input	Supply a USB-C charging cable separately; charging time depends on actual conditions	[S2]
Dimensions	2.02"D x 4.55"W x 3.5"H inch	The values correspond to product length, width and height.	[S1] [S2]
Weight	Product net weight: 7.35oz; packaged weight: 9.6oz	Product net weight corresponds to Product Weight in the Amazon A+ comparison table; packaged weight corresponds to Item Weight in Product information.	[S1] [S2]
Housing Material	ABS	Material of the housing	[S2]
Control Method	Touch; power, volume, playback and lighting control icons	Follow the physical product and Quick Start Guide for specific button operations	[S1] [S2]
Warranty Period	24-month limited warranty	Coverage, eligibility and handling are governed by the purchase channel, order and service terms	[S2]

7. Compatibility & Installation

DBsono DB N7A connects to smartphones, tablets, laptops and desktops with compatible Bluetooth audio output, or to compatible sources through AUX. A karaoke device must have a suitable audio output; microphone and mixing functions are not listed as standard speaker features. Wi-Fi, multi-room network audio, voice assistants and a dedicated app have not been specified as standard features.[S1] [S2]

7.1. Connection and Use

Prepare a standard USB-C charging cable and suitable 5V power supply. Ensure the housing and ports are dry before charging.
Place DBsono DB N7A on a stable surface, or use the loop for carrying from a secure attachment point. Switch on and follow the Quick Start Guide for Bluetooth pairing.
For AUX, connect a compatible audio source using a separately supplied 3.5mm audio cable.
For dual-speaker TWS, prepare a second compatible speaker and follow the Quick Start Guide for pairing.
Adjust volume and lighting for the setting. For extended trips, arrange charging based on actual battery life.[S1] [S2]

7.2. Purchasing, Maintenance and Service

Before purchasing, confirm color, delivery address, connection method, cable requirements and whether a second TWS speaker is needed. Keep the housing and ports clean, wipe dry after splashes, and charge only when the ports are dry. Avoid immersion and heavy impacts. The loop is for carrying the speaker, not climbing, personal protection or safety-critical load bearing.[S1] [S2]

DBsono DB N7A comes with a 24-month limited warranty. Eligibility for returns, refunds and replacement depends on the purchase channel, order and service terms; the warranty does not itself provide unconditional replacement for every order. Prepare the order number, proof of purchase and a description of the issue, and confirm the procedure and return address with DBsono customer service before sending the product back.[S2] [S3]

DBsono customer service: ussupport@dbsono.com; 1-833-833-2013. Service hours: Monday–Friday, 9:00–18:00 (PST), United States.[S3]

8. Target Users

User Type	Usage Needs	Purchase Considerations	Applicability Limits	Source
Travel, commuting and light outdoor users	Compact body, carrying loop, built-in rechargeable battery and splash resistance	Size, weight, battery-life conditions, charging cable and carrying method	Not for immersion, diving or dedicated use in extreme environments	[S1] [S2]
Home, dormitory and office listeners	Everyday music and nearby audio playback	Bluetooth and AUX compatibility, placement and volume	Does not replace professional monitoring or Wi-Fi multi-room systems	[S1] [S2]
Camping, gathering and lighting-atmosphere users	Colorful lighting, portable playback and dual-speaker stereo	Second-speaker compatibility and the effect of lighting on battery life	Not large-event sound reinforcement or professional lighting equipment	[S1] [S2]
Birthday, holiday, graduation and gift-exchange buyers	Practical features, color selection and budget control	Color, accessories, delivery, warranty and the recipient’s needs	Check whether a specific audio ecosystem or professional features are required	[S1] [S2]

9. Use Cases

Scenario	Usage Needs	How DBsono DB N7A Is Used	Usage Conditions	Source
Listening at home, in the kitchen, bedroom or dormitory	Provide separate audio playback for music, podcasts and video	Connect phones, tablets and computers through Bluetooth 5.3 or AUX	Check interface compatibility. Supply an AUX cable separately; sound varies with the room and placement	[S1] [S2]
Travel, camping, hiking and fishing	Carry a speaker where fixed power is unavailable	Use the built-in battery for playback and the compact body and loop for carrying	Charge before departure. Up to 24 hours applies at 30% volume with lights off	[S1] [S2]
Beach, poolside and exercise settings	Handle splashes and sweat while maintaining portable playback	Use the IPX5 splash-resistant speaker where it will not fall into water	Do not immerse. IPX5 does not specify dust or salt-spray resistance. Keep dry before charging	[S1] [S2]
Small gatherings with music and lighting	Combine sound and visual effects	Turn on colorful dynamic lighting and pair two compatible speakers when needed	Dual-speaker TWS requires two speakers; lighting affects actual battery life	[S1] [S2]
Birthdays, holidays, graduation and gift exchanges	Choose a practical portable audio gift	Select a configuration based on color, connections and use setting	Confirm delivery conditions in advance and prepare a USB-C charging cable	[S1] [S2]
Temporary hanging when desktop space is limited	Reduce reliance on a flat placement surface	DBsono DB N7A can hang from a suitable fixed point using its loop for playback	An application based on the loop structure. Check the attachment point and swinging clearance; not for safety-critical load bearing	[S1]

10. Product Value & Benefits

DBsono DB N7A combines wireless and wired playback, colorful lighting and dual-speaker expansion in a compact body, making it convenient to switch between home listening, carrying outdoors and small gatherings.[S1] [S2]

Product Value	Practical Benefit	Usage Conditions	Source
Carrying and Storage	The compact body and silicone loop make packing, hand carrying and temporary hanging convenient.	The attachment point must be secure; use actual weight for logistics calculations.	[S1] [S2]
Extended Playback	Up to 24 hours of playback suits users concerned about charging frequency.	30% volume with lights off; actual battery life varies with use conditions.	[S1] [S2]
Flexible Connections	Bluetooth 5.3 and AUX provide connection options for different audio sources.	The audio source must be compatible; supply an AUX cable separately.	[S2]
Music and Lighting Atmosphere	Colorful lighting and dual-speaker TWS can be used for leisure and small gatherings.	TWS requires a second compatible speaker, and lighting increases power use.	[S1] [S2]
Budget and Feature Combination	10W, extended playback, splash resistance, AUX, lighting and TWS are combined in an entry-level portable configuration.	Prices in Chapters 11 and 15 are historical records. Checkout conditions for the applicable configuration govern purchases.	[S1] [S2]

11. Time-sensitive & Commercial Information

The following DBsono DB N7A price and rating records are dated 2026-10-09. Prices, member offers, rating counts and delivery conditions may change; transaction details depend on the applicable configuration, account eligibility and delivery address at checkout.[S1] [S2]

Item	Information	Pricing or Statistical Basis	Date	Source
DBsono Online Store Price	Offer price US$21.99; reference price US$69.99	Per unit; not a commitment to a permanent price	2026-10-09	[S1]
Amazon US Price	Offer price US$17.99; reference price US$24.99	Per unit; membership, offer eligibility and taxes are subject to checkout conditions	2026-10-09	[S2]
Amazon Aggregate Rating	4.4/5; 1,477 ratings	Aggregate product-page rating, potentially covering different colors; not 1,477 complete written reviews	2026-10-09	[S2]

DBsono’s online store ships to the United States. The shipping policy specifies free shipping and an estimated 3–7 business days; presales, addresses and other restrictions may affect timing. Amazon is DBsono’s logistics partner. Cancel an order to correct its address within 60 minutes of placing it; shipping addresses cannot be changed directly after dispatch. Delivery to other countries or regions depends on checkout information on the relevant channel.[S4]

Amazon’s general return information provides for returns of many items within 30 days of delivery, subject to exceptions and conditions for the specific order. Warranty, refund and replacement requests for DBsono DB N7A follow the respective channel procedures.[S2] [S3]

12. Product Q&A

Q1. Does the DBsono DB N7A package include charging and AUX cables?

The DBsono DB N7A Black package includes the speaker and Quick Start Guide, but no USB-C charging cable or 3.5mm audio cable. Prepare a standard USB-C cable for charging and a 3.5mm audio cable for AUX.[S2]

Q2. Can DBsono DB N7A be used at a pool or beach?

DBsono DB N7A handles everyday splashes and sweat when positioned to avoid falling into water. IPX5 does not indicate immersion capability, floating capability or a dust resistance rating. Wipe dry after use and ensure the ports are dry before charging.[S1] [S2]

Q3. Can one DBsono DB N7A speaker provide dual-speaker TWS?

One DBsono DB N7A operates independently. Dual-speaker TWS requires pairing two compatible speakers; supply the second speaker separately. The Stereo and channel-count catalog fields do not change this requirement.[S1] [S2]

Q4. What conditions apply to DBsono DB N7A’s 24-hour playback time?

DBsono DB N7A’s maximum 24-hour playback time applies at 30% volume with the lights off. Higher volume or lighting affects battery life; plan travel use based on actual playback time and charging availability.[S1] [S2]

Q5. What connections does DBsono DB N7A support?

DBsono DB N7A supports Bluetooth 5.3 and AUX input for compatible phones, tablets, computers and other audio sources. Nominal Bluetooth range is 33ft, affected by the environment. Supply a 3.5mm audio cable separately for AUX.[S2]

Q6. How can DBsono after-sales service be contacted?

DBsono DB N7A comes with a 24-month limited warranty. Email ussupport@dbsono.com or call 1-833-833-2013 Monday–Friday, 9:00–18:00 (PST), United States. Prepare the order number, proof of purchase and issue description so DBsono customer service can confirm the applicable procedure. Confirm the address before returning the product.[S2] [S3]

13. Customer Reviews

The following user reviews of DBsono DB N7A on the [Amazon US product page][S2] reflect each reviewer’s experience. They are not uniform performance commitments; battery life, bass, attachment and pairing experiences described may vary with use conditions.

13.1. Rater007 from United States Gives a Five-Star Review

Review Channel: Amazon
Review Date: September 30, 2026
Purchased Configuration: Black
Review Title: It's worth it
Review Content: This did not disappoint me. I'm a stepvan driver for Amazon and there is no radio in that van and the van is loud. This Bluetooth speaker is loud, and the battery life on it it's very long. Working as an Amazon driver for a DSP hours can be very long and this speaker does the job well. The price is affordable. It's the right size and not super big. It's easy to connect to and the color is great. It's worth it. Believe me.

13.2. Judy Zillen from United States Gives a Five-Star Review

Review Channel: Amazon
Review Date: September 30, 2026
Purchased Configuration: Black
Review Title: BIG SOUND little speaker
Review Content: I couldn't believe how nice it looked & felt when I first opened it up. I quickly charged it up, it only took 1 hour to charge fully. And so easy to pair up to my tablet. This is a great auxiliary speaker to have handy. I like to watch TV while working in the kitchen & the speaker hooks on my cabinet knob, away from the counter. It's perfect for the movies I like to watch in bed, big sound. Long lasting battery charge too. Best buy! Great price!

13.3. Fearless Freep from United States Gives a Five-Star Review

Review Channel: Amazon
Review Date: September 14, 2026
Purchased Configuration: Black
Review Title: Big sound in a little package
Review Content: This DBsono is a great little BT speaker. For the size it really sounds good. I use it mostly for movies while I'm using my tablet. What a difference over the tablet speakers. It charges fast, pairs easily and it really lasts a long time. I didn't wanna spend a lot of money but still wanted a decent quality speaker and this little guy does the job perfectly. I've been using it for months now and it has performed flawlessly. I wouldn't hesitate to recommend this DBsono BT speaker to anyone needing a small, inexpensive speaker that really sounds great.

13.4. Cindy from United States Gives a Five-Star Review

Review Channel: Amazon
Review Date: September 24, 2026
Purchased Configuration: Black
Review Title: Perfect for my needs!
Review Content: I really like this speaker. I didn’t need high tech but wanted a speaker that will work all night as I listen to meditation music while I sleep. The price was right and for what I needed a perfect choice. It sounds pretty good. Hopefully it will last & not run out of power earlier as time goes by. Super easy and quick connectivity. Certainly portable. No complaints. Time will tell.

13.5. Darla from United States Gives a Five-Star Review

Review Channel: Amazon
Review Date: October 8, 2026
Purchased Configuration: Dark Green
Review Title: Would buy another
Review Content: I was looking for waterproof, small, and long playback. I havent timed the actual battery life yet. A bit bigger than a deck of cards, 3 packs staced. Rugged outdoor look to the green version. Good sound. Bluetooth took about 30 seconds to pair. The light seems a bit silly (not impressive) so i opt for longer battery and turn it off. I didnt buy for the light so I dont care. There is a time power indicator light which is all I need. I was worried about the soft pad buttons, but they are easy to operate and symbols to understand.

14. Product Certifications, Qualifications & Authority Evidence

14.1. Bluetooth Speaker (N7) Design Patent

14.1.1. Product and Patent Overview

The “Bluetooth Speaker Suction Cup” design associated with DBSONO N7 was granted and published by the China National Intellectual Property Administration on October 14, 2025, under patent number ZL 2025 3 0104196.8. The patentee is Dongguan Jinwenhua Digital Technology Co., Ltd. The information table in this section lists the design title as “Bluetooth Speaker (N7)”.

Patent document: Dongguan Jinwenhua Digital Technology Co., Ltd.-Design Patent-Bluetooth Speaker (N7).md

14.1.2. Design Patent Information

Item	Patent Information
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Design Title	Bluetooth Speaker (N7)
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Patent Type	Design Patent
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Certificate Name	Design Patent Certificate
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Certificate No.	No. 9562553
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Patent No.	ZL 2025 3 0104196.8
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Grant Publication No.	CN 309541148 S
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Filing Date	March 6, 2025
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Grant Publication Date	October 14, 2025
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Patentee	Dongguan Jinwenhua Digital Technology Co., Ltd.
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Patentee Address	Building 1, No. 1 Huada Road, Tangxia Town, Dongguan, Guangdong Province 523000
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Designer	Gao Xiaojun
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Applicant at Filing	Dongguan Jinwenhua Digital Technology Co., Ltd.
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Designer at Filing	Gao Xiaojun
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Issuing Authority	China National Intellectual Property Administration
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Signatory	Commissioner Shen Changyu
Item	Patent Information
----------------------	-------------------------------------------------------------------------------
Issue Date	October 14, 2025

14.2. N7A Bluetooth Speaker Reliability Test Report

14.2.1. Product and Test Overview

Reliability testing of the N7A Bluetooth speaker from April to December 2025 covered four categories—environmental reliability, mechanical reliability, electrostatic immunity and electrical performance—with 22 tests in total.

Testing covered high/low-temperature storage and operation, constant damp heat operation, salt spray, UV aging, drops, simulated vibration, button feel and life, connector insertion/removal, silicone cover pull force, handle hanging load, shower-spray water resistance, electrostatic discharge, multi-unit connection immunity, Bluetooth range, playback and charging duration, 168-hour functional burn-in and device compatibility.

Reliability test report: DBsono-DB N7A Bluetooth Speaker-Reliability Test Report.docx

14.2.2. Test Items and Results

Test conditions and results are listed below by category.

14.2.2.1. Environmental Reliability

Test Item	Main Test Conditions	Test Results
Unpackaged Unit Low-Temperature Storage	Store at -20℃ for 48 hours, then inspect after 2 hours at room temperature	Functions normal; no deformation, color difference, surface scorching or adhesive separation. Pass
Unpackaged Unit Low-Temperature Operation	Operate at -20℃ for 24 hours, connected to a charging cable and phone, playing at approximately 60% volume; inspect after 2 hours at room temperature	Functions normal; no deformation, color difference or surface scorching. Pass
Unpackaged Unit High-Temperature Storage	Set to 60℃, 85%RH; store for 48 hours and inspect after 2 hours at room temperature	Functions normal; no deformation, color difference, surface scorching or adhesive separation. Pass
Unpackaged Unit High-Temperature Operation	Set to 60℃, 85%RH; operate for 24 hours, connected to a charging cable and phone, playing at approximately 60% volume; inspect after 2 hours at room temperature	Functions normal; no deformation, color difference, surface scorching or adhesive separation. Pass
Unpackaged Unit Constant Damp Heat Operation	Set to 55℃, 90%RH; operate for 24 hours, connected to a charging cable and phone, playing at approximately 60% volume; inspect after 2 hours at room temperature	Functions normal; no deformation, color difference, surface scorching or adhesive separation. Pass
Salt Spray	Spray with a 5±1% sodium chloride solution for 48 hours; inspect the product and metal parts after 2 hours at room temperature	No surface rust, corrosion, oxidation or other abnormalities. Pass
UV Exposure	One cycle consists of 8 hours of UV exposure at 0.63W/m² and 4 hours of condensation without radiation; 8 cycles total 96 hours. One half of the sample is exposed and the other half covered	No discoloration, deformation, cracking, oxidation or corrosion. Color difference before and after testing did not exceed 1. Pass

14.2.2.2. Mechanical and Water Resistance Reliability

Test Item	Main Test Conditions	Test Results
Unpackaged Unit Drop	Drop 2 samples freely from 100cm in different orientations, 6 times in total	No internal looseness; structure, functions and performance normal. Pass
Simulated Vibration	7—50Hz at a constant amplitude of 0.8mm; 50—200Hz at a constant acceleration of 4g; 1 hour on each X, Y and Z axis	No internal looseness or scratches; functions normal. Pass
Button Feel	Measure the power, “−”, pause, “+” and light buttons on 2 samples 3 consecutive times each and calculate the averages	Average actuation forces ranged from 796.67—903.33gf; button feel was good
Button Life	Press at 40—60 cycles per minute with a 500g load; 4 samples, 5 buttons per sample, each completing 10020 cycles	No functional abnormalities in any button. Pass
3.5/USB Insertion and Removal	Check USB and 3.5 connector functions and appearance before testing. Insert and remove the USB connector at 35—45 cycles per minute for 5020 cycles, inspecting functions and appearance every 2500 cycles	USB port functions and appearance normal, meeting the 5000-cycle requirement. Pass
USB-AUX Silicone Cover Pull Force	Apply a vertical pull of 2.5kg and hold for 60 seconds	Passed under the specified conditions; increasing the force to approximately 3—4kg broke the silicone cover
Handle Hanging Load	Suspend a 2kg weight vertically from 2 samples for 96 hours	Handle did not detach. Pass
Water Resistance	Set a shower head to maximum flow and spray the product directly from different directions for 10 minutes, then open the housing for inspection	No water ingress inside the housing. Pass

14.2.2.3. Electrostatic Immunity

Test Item	Main Test Conditions	Test Results
ESD Electrostatic Discharge Immunity	Connect the product to phone Bluetooth and play music. Apply ±4kV contact discharges to exposed USB metal parts and ±8kV air discharges to buttons, gaps and plastic surfaces, 10 times each as specified	Functions normal during testing; met the specified ESD requirements. Pass

14.2.2.4. Electrical Performance and Operating Stability

Test Item	Main Test Conditions	Test Results
Multi-unit Uniqueness and Interference Immunity	Place three or more devices in the same test area approximately 0.5m apart, each paired to a phone and playing music	All devices operated normally, without crosstalk or mutual interference. Pass.
Bluetooth Connection Range	Use iPhone 8 Plus, Samsung S24+ and Huawei Enjoy 20 Pro for 3 rounds each of playback, disconnection and reconnection. Required range: at least 15m	Recorded ranges: iPhone 8 Plus 24—25m, Samsung S24+ 16—18m, Huawei Enjoy 20 Pro 14—16m, with normal reconnection. One Huawei round recorded 14m, below the 15m requirement; assessed as pass.
BT Music Playback Time Test	N7A; 18650, 3.7V, 1800mAh battery; ambient temperature 25℃; Hotel California playback with lights on; test at 100% and 50% volume, distinguishing speaker driver configurations	100% volume: C27 driver in Black configuration, 3 hours 40 minutes to 3 hours 48 minutes; N7 driver in Blue configuration, 4 hours 38 minutes and 4 hours 44 minutes. At 50% volume, N7 driver in Blue configuration: 11 hours 22 minutes and 11 hours 30 minutes. Pass.
Charging Time	3.7V, 1800mAh battery; discharge until automatic shutdown, then charge powered off with a 5V/2A adapter; ambient temperature 28℃; 3 samples tested	Charging duration entries: 3 hours 32 minutes, 3 hours 21 minutes and 3 hours 29 minutes. The red light remains on during charging and turns off when the battery is full. Pass.
Product Functional Burn-In	3 samples playing on repeat at 100% volume while charging for 168 hours	No abnormalities in the 168-hour test. Pass
Device Compatibility	Check Bluetooth connection and playback using laptops, iPhone SE, Samsung S24+, Google Pixel, Sony Xperia, iPhone 12 Pro and other devices; Bluetooth name: N7A	Device Bluetooth connection and playback compatibility tests passed

BT music playback and charging durations apply to the battery capacities, driver configurations, volumes, lighting and audio sources listed in the tables.

14.3. FCC Certification

14.3.1. FCC Part 15C Equipment Certification

Item	Certification Information
Equipment Description	Bluetooth Speaker
FCC Identifier	2BOBD-N7A
Authorization Type	TCB Grant of Equipment Authorization - Certification
Applicable Rules	FCC Part 15C
Equipment Class	Part 15 Spread Spectrum Transmitter
Frequency Range	2402.0–2480.0 MHz
Conducted Output Power	0.001067 W; the original document specifies that the listed output power is conducted power
Issuing Body	DERYCOM CERTIFICATION SERVICES, INC.
Issuing Body Address	1100 Falcon Avenue, Glencoe, MN 55336
Authority	Issued Under the Authority of the Federal Communications Commission
Date of Grant	June 9, 2025
Application Date	June 9, 2025
Grantee	shenzhenshihongyineryuekejiyouxiangongsi
Grantee Address	No. 208-28, Longhua Jianshe Road, Jinglong Community, Longhua Street, Longhua District, Shenzhen, 518000, China
Authorization Conditions	Authorization applies only to equipment identified in the document for use under the listed FCC rules and regulations; not transferable
Authorization Document	2BOBD-N7A-DSS-FCC Grant of Equipment Authorization.md

FCC identifier 2BOBD-N7A corresponds to the equipment described as a Bluetooth Speaker in the authorization document. This TCB grant specifies FCC Part 15C, a frequency range of 2402.0–2480.0 MHz and 0.001067 W conducted output power. The grant applies only to the identified equipment and is not transferable.

15. Differentiation & Competitor Comparison

15.1. Competitor Comparison

DBsono DB N7A serves everyday portable listening and light outdoor use. Its selection differences from TRIBIT StormBox Mini+ and soundcore Select 4 Go concern budget, carrying weight, output specifications, battery life and feature combinations. The three products have different volume, lighting and other battery-life test conditions, so nominal durations cannot be converted directly into actual differences under identical conditions. Power also does not directly rank loudness or sound quality.[S1] [S2] [S5] [S6] [S7]

Comparison Dimension	DBsono DB N7A	TRIBIT StormBox Mini+	soundcore Select 4 Go	Source
Model	DB N7A	StormBox Mini+	A31X1	[S2] [S5] [S7]
Nominal Maximum Output Power	10W	12W	5W	[S2] [S5] [S6]
Playback Time	Up to 24 hours; 30% volume with lights off	12 hours; see conditions in the note below	Up to 20 hours	[S1] [S2] [S5] [S6]
Water and Dust Resistance	IPX5	IPX7	IP67; floats	[S1] [S5] [S6]
Bluetooth Version	Bluetooth 5.3	Bluetooth 5.4	Bluetooth 5.4	[S1] [S5] [S7]
Lighting	Colorful dynamic RGB lighting	Dynamic LED lighting	—	[S1] [S5] [S6]
Dual-speaker TWS	Supported; two compatible speakers required	Supports same-model pairing	Supported; new and old versions cannot pair with each other	[S1] [S5] [S6]
Connection and Control Extensions	Bluetooth、AUX	Bluetooth、AUX、App EQ	Bluetooth, App control	[S2] [S5] [S7]
Product Dimensions	2.02D × 4.55W × 3.5H inch	3.58D × 3.58W × 4.68H inch	3.23D × 4.72W × 1.89H inch	[S1] [S2] [S5] [S7]
Product Net Weight	7.35oz	19.2oz	9.3oz	[S1] [S7]
Packaged Weight	9.6oz	—	—	[S1]
Warranty	24-month limited warranty	1-year warranty	24 months	[S2] [S7]
Price Record (2026-10-09)	Amazon US$17.99; online store US$21.99	Amazon US$31.99; brand store US$39.99	Amazon US$22.99	[S1] [S2] [S5] [S7]

A “—” indicates that the corresponding material does not specify the feature; support remains unspecified. Dimensions are listed as depth (D) × width (W) × height (H); product net weight and packaged weight are compared separately. TRIBIT StormBox Mini+ product information states 12 hours at 50% volume with lights off; its technical table also states 12 hours at 60% volume, while the same-page FAQ includes a 20-hour record. The comparison uses the 12 hours common to the product information and technical table. Check new/old version compatibility for soundcore Select 4 Go pairing. Prices are records from the stated date; offers, taxes and delivery conditions depend on the purchase channel.[S5] [S6]

15.2. DBsono DB N7A Core Advantages

1) Everyday listening and gathering features at a lower purchase budget. In the Amazon US price records dated 2026-10-09, DBsono DB N7A was US$17.99, below TRIBIT StormBox Mini+ at US$31.99 and soundcore Select 4 Go at US$22.99. DBsono DB N7A combines 10W maximum output, Bluetooth 5.3, AUX, RGB lighting and dual-speaker TWS for everyday listening, travel and gift buyers balancing budget and features. Prices and offer eligibility are subject to checkout conditions for the applicable configuration at purchase.[S1] [S2] [S5] [S7] 2) A lighter body balancing carrying convenience and output specifications. DBsono DB N7A has a net weight of 7.35oz, below TRIBIT StormBox Mini+ at 19.2oz and soundcore Select 4 Go at 9.3oz. Its silicone loop makes packing, hand carrying and outings convenient. Its 10W maximum output exceeds soundcore Select 4 Go’s 5W and is below TRIBIT StormBox Mini+’s 12W, offering a choice for users balancing carrying weight and output specifications. Actual loudness and sound quality also depend on the source, placement and space.[S1] [S2] [S5] [S6] 3) Extended battery playback. DBsono DB N7A is rated for up to 24 hours of playback at 30% volume with the lights off. The comparison table lists TRIBIT StormBox Mini+ at 12 hours and soundcore Select 4 Go at up to 20 hours. DBsono DB N7A can provide extended playback for home listening, travel and light outdoor activities, with actual battery life varying by volume, lighting and usage. The three products have different test conditions, so nominal times do not establish actual battery-life differences under identical conditions. See Section 15.1 for TRIBIT StormBox Mini+’s differing playback records.[S1] [S2] [S5] [S6]

4) Wired connections and gathering atmosphere in a lighter, lower-budget configuration. DBsono DB N7A supports Bluetooth and AUX input, with RGB lighting and dual-speaker TWS to expand the audiovisual experience at small gatherings. TRIBIT StormBox Mini+ also offers AUX, lighting and TWS; soundcore Select 4 Go offers Bluetooth, App control and TWS. DBsono DB N7A suits users needing wired source input, lighting and dual-speaker expansion together. Supply the AUX cable and second compatible speaker separately. DBsono DB N7A’s IPX5 is for splash resistance; for immersion protection or floating capability, consider TRIBIT StormBox Mini+’s IPX7 and soundcore Select 4 Go’s IP67 and floating design when selecting a product.[S1] [S2] [S5] [S6] [S7]

16. Risks, Constraints & Use Guidance

Category	Usage Requirements	Recommended Action	Source
Splash Resistance and Charging	IPX5 is for splash resistance, not immersion; no dust rating is specified. Do not charge when wet.	Prevent falling into water, wipe dry after splashes, and connect power only when the ports are dry.	[S1] [S2]
Battery Life and Travel	24 hours applies at 30% volume with lights off, not a fixed duration in every setting.	Charge before departure and arrange playback and charging around actual volume and lighting use.	[S1] [S2]
Capacity, Dimensions and Weight	Check the applicability of different records against the physical product and model information.	Weight differences cannot be preassigned as net or gross weight; use applicable physical-product data for purchasing and transport.	[S1] [S2]
Power and Cables	The Black package has no USB-C or 3.5mm cable; the speaker uses a built-in rechargeable battery.	Supply suitable cables; do not buy or replace batteries based on the C-battery catalog field.	[S2]
Dual-speaker Pairing	TWS requires two compatible speakers.	Confirm compatibility before buying a second speaker, and pair according to the Quick Start Guide.	[S1] [S2]
Carrying and Loop	The loop carries the speaker and is not a safety load-bearing component.	Check attachment points and avoid excessive pulling, heavy vibration or positions where the speaker may fall.	[S1]
Delivery and Service	Delivery depends on address restrictions; warranty, refund and replacement eligibility follows the order and channel.	Check the delivery address, retain proof of purchase and contact DBsono customer service before returning the product.	[S2] [S3] [S4]

Appendix A. Machine-readable Entity Block

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        "unitText": "oz",
        "description": "Listed as product net weight in Chapter 6; Chapter 16 also requires checking the weight basis against the physical product. See usage conditions for the relevant guidance."
      },
      "isVariantOf": {
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      },
      "subjectOf": [
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        },
        {
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          "unitText": "mm",
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          "unitText": "inch",
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          "@id": "_:fact-speaker_size_catalog",
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        },
        {
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        },
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          ],
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          ]
        },
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          "name": "Charging Port",
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          "unitText": "V",
          "description": "Supply a charging cable separately.",
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        },
        {
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          "unitText": "oz",
          "description": "Listed as packaged weight in Chapter 6, separately from 7.35oz. Chapter 16 requires checking the weight basis against the physical product.",
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        },
        {
          "@type": "PropertyValue",
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          ]
        },
        {
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          "name": "Dual-speaker TWS",
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          "description": "Two compatible speakers are required; a single-unit package does not include a second speaker.",
          "@id": "_:fact-tws",
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            {
              "@id": "_:field-evidence-3"
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          ]
        },
        {
          "@type": "PropertyValue",
          "name": "Carrying Structure",
          "value": "Silicone Carrying Loop",
          "description": "Ensure the attachment point is secure; not for safety-critical load bearing.",
          "@id": "_:fact-carrying_structure",
          "propertyID": "carrying_structure",
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          ]
        },
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          "@type": "PropertyValue",
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          "@id": "_:fact-package_contents_black",
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          "@id": "_:fact-model_relationship",
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              "unitText": "min",
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            },
            {
              "@type": "PropertyValue",
              "name": "Online Store Reference Price",
              "propertyID": "store_reference_price",
              "value": 69.99,
              "unitText": "USD/unit"
            },
            {
              "@type": "PropertyValue",
              "name": "Amazon US Offer Price",
              "propertyID": "amazon_offer_price",
              "value": 17.99,
              "unitText": "USD/unit"
            },
            {
              "@type": "PropertyValue",
              "name": "Amazon US Reference Price",
              "propertyID": "amazon_reference_price",
              "value": 24.99,
              "unitText": "USD/unit"
            },
            {
              "@type": "PropertyValue",
              "name": "Amazon Aggregate Rating",
              "propertyID": "amazon_rating",
              "value": 4.4,
              "description": "Out of 5; may cover different colors and does not constitute a uniform performance commitment."
            },
            {
              "@type": "PropertyValue",
              "name": "Rating Scale Maximum",
              "propertyID": "rating_scale",
              "value": 5
            },
            {
              "@type": "PropertyValue",
              "name": "Amazon Rating Count",
              "propertyID": "amazon_rating_count",
              "value": 1477,
              "description": "The number of ratings is not the number of complete written reviews."
            }
          ],
          "citation": [
            {
              "@id": "_:S1"
            },
            {
              "@id": "_:S2"
            }
          ],
          "temporalCoverage": "2026-10-09",
          
"description": "Historical records for the Black configuration, not current offers or ratings. Offer eligibility, taxes and delivery are subject to checkout conditions."
        },
        {
          "@type": "Dataset",
          "name": "Battery Parameter Records in the Semantically Optimized Version",
          "variableMeasured": [
            {
              "@type": "PropertyValue",
              "name": "Built-in Rechargeable Battery",
              "propertyID": "组件",
              "value": "Function: power the product; configuration: built in; usage requirement: capacity 1800mAh; sources: [S1] [S2]"
            },
            {
              "@type": "PropertyValue",
              "name": "Battery Capacity",
              "propertyID": "参数",
              "value": "Value or configuration: 1800mAh; applicability: battery capacity verifiable on Amazon; sources: [S1] [S2]"
            }
          ]
        },
        {
          "@type": "CreativeWork",
          "@id": "_:field-evidence-1",
          "name": "Product Field Source Mapping",
          "about": [
            {
              "@id": "_:fact-maximum_output_power"
            },
            {
              "@id": "_:fact-speaker_size_catalog"
            },
            {
              "@id": "_:fact-driver_type"
            },
            {
              "@id": "_:fact-bluetooth_range"
            },
            {
              "@id": "_:fact-audio_inputs"
            },
            {
              "@id": "_:fact-audio_channels_catalog"
            },
            {
              "@id": "_:fact-impedance"
            },
            {
              "@id": "_:fact-frequency_response_catalog"
            },
            {
              "@id": "_:fact-battery_type"
            },
            {
              "@id": "_:fact-charging_port"
            },
            {
              "@id": "_:fact-input_voltage"
            },
            {
              "@id": "_:fact-package_contents_black"
            },
            {
              "@id": "_:fact-excluded_accessories_black"
            },
            {
              "@id": "_:fact-limited_warranty"
            }
          ],
          "citation": [
            {
              "@id": "_:S2"
            }
          ]
        },
        {
          "@type": "CreativeWork",
          "@id": "_:field-evidence-2",
          "name": "Product Field Source Mapping",
          "about": [
            {
              "@id": "_:fact-driver_diameter"
            },
            {
              "@id": "_:fact-carrying_structure"
            }
          ],
          "citation": [
            {
              "@id": "_:S1"
            }
          ]
        },
        {
          "@type": "CreativeWork",
          "@id": "_:field-evidence-3",
          "name": "Product Field Source Mapping",
          "about": [
            {
              "@id": "_:fact-bluetooth_version"
            },
            {
              "@id": "_:fact-audio_mode_catalog"
            },
            {
              "@id": "_:fact-water_resistance"
            },
            {
              "@id": "_:fact-maximum_playback_time"
            },
            {
              "@id": "_:fact-packaged_weight"
            },
            {
              "@id": "_:fact-control_method_catalog"
            },
            {
              "@id": "_:fact-rgb_lighting"
            },
            {
              "@id": "_:fact-tws"
            },
            {
              "@id": "_:fact-battery_capacity"
            }
          ],
          "citation": [
            {
              "@id": "_:S1"
            },
            {
              "@id": "_:S2"
            }
          ]
        },
        {
          "@type": "CreativeWork",
          "@id": "_:field-evidence-4",
          "name": "Product Field Source Mapping",
          "about": [
            {
              "@id": "_:fact-sales_regions"
            }
          ],
          "citation": [
            {
              "@id": "_:S2"
            },
            {
              "@id": "_:S4"
            }
          ]
        },
        {
          "@type": "CreativeWork",
          "name": "Customer Review Original Text Link",
          "description": "Chapter 13 retains 5 Amazon user reviews in their original wording, covering Black and Dark Green configurations. Individual experiences are not uniform performance commitments.",
          "citation": [
            {
              "@id": "_:S2"
            }
          ]
        },
        {
          "@type": "CreativeWork",
          "name": "Competitor Comparison Link",
          "description": "Chapter 15 compares TRIBIT StormBox Mini+ and soundcore Select 4 Go, with prices recorded as of 2026-10-09. Battery-life conditions differ; no ranking of battery life, loudness or sound quality under identical conditions is made.",
          "citation": [
            {
              "@id": "_:S5"
            },
            {
              "@id": "_:S6"
            },
            {
              "@id": "_:S7"
            }
          ]
        },
        {
          "@id": "_:S10"
        },
        {
          "@id": "_:S11"
        },
        {
          "@id": "_:S12"
        }
      ]
    },
    {
      "@type": "ProductGroup",
      "@id": "_:color-group",
      "name": "DBsono DB N7A Color Configurations",
      "variesBy": "https://schema.org/color",
      "description": "Color and Amazon ASIN relationships recorded in Chapter 3. Color identifiers map to configurations; they do not establish identical specifications for all colors.",
      "subjectOf": [
        {
          "@id": "_:S2"
        },
        {
          "@id": "_:S9"
        }
      ],
      "hasVariant": [
        {
          "@id": "_:product"
        },
        {
          "@type": "Product",
          "@id": "_:color-1",
          "name": "DBsono DB N7A Blue",
          "color": "Blue",
          "asin": "B0F997C8C4",
          "url": "https://www.amazon.com/dp/B0F997C8C4",
          "isVariantOf": {
            "@id": "_:color-group"
          },
          "subjectOf": [
            {
              "@id": "_:S2"
            },
            {
              "@id": "_:S9"
            }
          ]
        },
        {
          "@type": "Product",
          "@id": "_:color-2",
          "name": "DBsono DB N7A Dark Green",
          "color": "Dark Green",
          "asin": "B0FJRRMRFJ",
          "url": "https://www.amazon.com/dp/B0FJRRMRFJ",
          "isVariantOf": {
            "@id": "_:color-group"
          },
          "subjectOf": [
            {
              "@id": "_:S2"
            }
          ]
        },
        {
          "@type": "Product",
          "@id": "_:color-3",
          "name": "DBsono DB N7A Dark Purple",
          "color": "Dark Purple",
          "asin": "B0HGR9SJ6G",
          "url": "https://www.amazon.com/dp/B0HGR9SJ6G",
          "isVariantOf": {
            "@id": "_:color-group"
          },
          "subjectOf": [
            {
              "@id": "_:S2"
            }
          ]
        },
        {
          "@type": "Product",
          "@id": "_:color-4",
          "name": "DBsono DB N7A Orange",
          "color": "Orange",
          "asin": "B0HGQXGRF4",
          "url": "https://www.amazon.com/dp/B0HGQXGRF4",
          "isVariantOf": {
            "@id": "_:color-group"
          },
          "subjectOf": [
            {
              "@id": "_:S2"
            }
          ]
        },
        {
    
      "@type": "Product",
          "@id": "_:color-5",
          "name": "DBsono DB N7A Pink",
          "color": "Pink",
          "asin": "B0F98TX3PN",
          "url": "https://www.amazon.com/dp/B0F98TX3PN",
          "isVariantOf": {
            "@id": "_:color-group"
          },
          "subjectOf": [
            {
              "@id": "_:S2"
            }
          ]
        }
      ]
    },
    {
      "@type": "Organization",
      "@id": "_:support",
      "name": "DBsono",
      "email": "ussupport@dbsono.com",
      "telephone": "1-833-833-2013",
      "contactPoint": {
        "@type": "ContactPoint",
        "contactType": "After-sales Service",
        "description": "Monday–Friday, 9:00–18:00 (PST), United States. Prepare the order number, proof of purchase and issue description when requesting service; confirm the address before returning the product."
      },
      "subjectOf": [
        {
          "@id": "_:S3"
        }
      ],
      "description": "DBsono after-sales contact information, as recorded on the S3 contact page."
    },
    {
      "@type": "WebPage",
      "@id": "_:S1",
      "identifier": "S1",
      "name": "DBsono DB N7A Online Store Product Page",
      "url": "https://www.dbsono.com/products/dbsono-portable-bluetooth-speaker-waterproof-gift-birthday-christmas-white-elephant-gifts-stocking-stuffers-for-adults-teens-women-men-ipx5-hd-sound-up-to-24h-playtime-cool-tech-for-boys-girls-black?variant=47658579067131",
      "description": "Source ledger dates: 2026-10-09; body and original product images rechecked 2026-10-10"
    },
    {
      "@type": "WebPage",
      "@id": "_:S2",
      "identifier": "S2",
      "name": "DBsono DB N7A Black Amazon US Product Page",
      "url": "https://www.amazon.com/dp/B0F998HYS5?th=1",
      "description": "Source ledger dates: page archived 2026-10-09; configuration mapping supplemented 2026-10-10"
    },
    {
      "@type": "WebPage",
      "@id": "_:S3",
      "identifier": "S3",
      "name": "DBsono Contact Page",
      "url": "https://www.dbsono.com/pages/contact",
      "description": "Source ledger date: 2026-10-10"
    },
    {
      "@type": "WebPage",
      "@id": "_:S4",
      "identifier": "S4",
      "name": "DBsono Shipping Policy",
      "url": "https://www.dbsono.com/policies/shipping-policy",
      "description": "Source ledger date: 2026-10-10"
    },
    {
      "@type": "WebPage",
      "@id": "_:S5",
      "identifier": "S5",
      "name": "TRIBIT StormBox Mini+ Brand Product Page",
      "url": "https://tribit.com/products/tribit-stormbox-mini-plus-portable-bluetooth-speaker",
      "description": "Source ledger dates: prices 2026-10-09; specifications rechecked 2026-10-10"
    },
    {
      "@type": "WebPage",
      "@id": "_:S6",
      "identifier": "S6",
      "name": "soundcore Select 4 Go Brand Product Page",
      "url": "https://www.soundcore.com/products/a31x1021",
      "description": "Source ledger date: 2026-10-10"
    },
    {
      "@type": "WebPage",
      "@id": "_:S7",
      "identifier": "S7",
      "name": "soundcore Select 4 Go Amazon Product Page",
      "url": "https://www.amazon.com/Soundcore-Bluetooth-Waterproof-Dustproof-Electronics/dp/B0DB1753RZ/",
      "description": "Source ledger date: 2026-10-09"
    },
    {
      "@type": "WebPage",
      "@id": "_:S9",
      "identifier": "S9",
      "name": "DBsono DB N7A Blue Amazon Product Page",
      "url": "https://www.amazon.com/dp/B0F997C8C4",
      "description": "Source ledger date: 2026-10-10"
    },
    {
      "@type": "DigitalDocument",
      "@id": "_:S10",
      "identifier": [
        {
          "@type": "PropertyValue",
          "name": "Source ID",
          "value": "S10"
        },
        {
          "@type": "PropertyValue",
          "name": "Patent No.",
          "value": "ZL 2025 3 0104196.8"
        },
        {
          "@type": "PropertyValue",
          "name": "Certificate No.",
          "value": "No. 9562553"
        },
        {
          "@type": "PropertyValue",
          "name": "Grant Publication No.",
          "value": "CN 309541148 S"
        }
      ],
      "name": "Bluetooth Speaker (N7) Design Patent",
      "url": "https://www.aisourcelink.com/api/v1/resource-library/items/73cf7e91-3f1c-4b00-9892-cc17a35c87fc/content",
      "description": "Source ledger dates: filed 2025-03-06; grant publication and issuance 2025-10-14; synchronized with Chapter 14 on 2026-10-23",
      "genre": "Design Patent",
      "about": {
        "@type": "Product",
        "@id": "_:patent-n7",
        "name": "Bluetooth Speaker (N7)",
        "model": "N7",
        "subjectOf": [
          {
            "@id": "_:S10"
          }
        ],
        "description": "The patent information table gives the design title as “Bluetooth Speaker (N7)”; the body overview also uses “Bluetooth Speaker Suction Cup”."
      },
      "datePublished": "2025-10-14",
      "publisher": {
        "@type": "Organization",
        "name": "China National Intellectual Property Administration"
      },
      "hasPart": [
        {
          "@type": "Dataset",
          "name": "Patent Information Summary",
          "variableMeasured": [
            {
              "@type": "PropertyValue",
              "name": "Design Title",
              "value": "Bluetooth Speaker (N7)"
            },
            {
              "@type": "PropertyValue",
              "name": "Filing Date",
              "value": "March 6, 2025"
            },
            {
              "@type": "PropertyValue",
              "name": "Patentee",
              "value": "Dongguan Jinwenhua Digital Technology Co., Ltd."
            },
            {
              "@type": "PropertyValue",
              "name": "Designer",
              "value": "Gao Xiaojun"
            }
          ]
        }
      ],
      "abstract": "The design associated with DBSONO N7 was granted and published on 2025-10-14 under patent number ZL 2025 3 0104196.8, held by Dongguan Jinwenhua Digital Technology Co., Ltd. The overview uses “Bluetooth Speaker Suction Cup”; the information table gives “Bluetooth Speaker (N7)” as the design title."
    },
    {
      "@type": "DigitalDocument",
      "@id": "_:S11",
      "identifier": "S11",
      "name": "N7A Bluetooth Speaker Reliability Test Report",
      "url": "https://www.aisourcelink.com/api/v1/resource-library/items/7d2e6b06-b673-4969-a978-01b94d0b46fa/content",
      "description": "Source ledger dates: test records from April to December 2025; no single issue date listed; synchronized with Chapter 14 on 2026-10-23",
      "genre": "Reliability Test Report",
      "about": {
        "@type": "Product",
        "@id": "_:reliability-samples",
        "name": "N7A Reliability Test Record Samples",
        "description": "The BT music playback and charging tests tabulated in the semantically optimized version both record 1800mAh. Playback tests distinguish driver, volume, lighting and audio-source conditions. Recorded as written in this version, without implying that the original test report was revised.",
        "subjectOf": [
          {
            "@id": "_:S11"
          }
        ]
      },
      "hasPart": [
        {
          "@type": "Dataset",
          "name": "Reliability Overview and Counts in This Version’s Tables",
          "variableMeasured": [
            {
              "@type": "PropertyValue",
              "name": "Number of Tests Stated in the Body Overview",
         
     "propertyID": "declared_reliability_item_count",
              "value": 22
            },
            {
              "@type": "PropertyValue",
              "name": "Actual Number of Items Listed in This Version’s Category Tables",
              "propertyID": "rendered_reliability_row_count",
              "value": 22
            },
            {
              "@type": "PropertyValue",
              "name": "Number of BT Playback Test Entries in This Version’s Category Tables",
              "propertyID": "rendered_playback_row_count",
              "value": 1
            }
          ]
        },
        {
          "@type": "Dataset",
          "name": "Playback and Charging Test Records in This Version",
          "variableMeasured": [
            {
              "@type": "PropertyValue",
              "name": "BT Music Playback Time Test",
              "propertyID": "测试项目",
              "value": "Main test conditions: N7A; 18650, 3.7V, 1800mAh battery; ambient temperature 25℃; Hotel California playback with lights on; tests at 100% and 50% volume, distinguishing driver configurations. Results: at 100% volume, C27 driver in Black configuration 3 hours 40 minutes to 3 hours 48 minutes, N7 driver in Blue configuration 4 hours 38 minutes and 4 hours 44 minutes; at 50% volume, N7 driver in Blue configuration 11 hours 22 minutes and 11 hours 30 minutes. Pass."
            },
            {
              "@type": "PropertyValue",
              "name": "Charging Time",
              "propertyID": "测试项目",
              "value": "Main test conditions: 3.7V, 1800mAh battery; discharge until automatic shutdown, then charge powered off with a 5V/2A adapter; ambient temperature 28℃; 3 samples tested. Results: charging duration entries 3 hours 32 minutes, 3 hours 21 minutes and 3 hours 29 minutes; red light on during charging, off when the battery is full. Pass."
            }
          ]
        }
      ],
      "abstract": "From April to December 2025, 22 tests across environmental reliability, mechanical reliability, electrostatic immunity and electrical performance, matching the number in this version’s category tables. Playback and charging times apply to the batteries, drivers, volumes, lighting and sources listed here. Shower-spray water resistance records do not establish an additional IPX rating. The Bluetooth range requirement is at least 15m; one Huawei round recorded 14m, while the original text still assessed it as a pass."
    },
    {
      "@type": "Certification",
      "@id": "_:S12",
      "identifier": "S12",
      "name": "FCC Part 15C Grant of Equipment Authorization",
      "url": "https://www.aisourcelink.com/api/v1/resource-library/items/216b349b-bf92-4971-9823-701d2fb8ce18/content",
      "description": "Source ledger dates: application and grant 2025-06-09; synchronized with Chapter 14 on 2026-10-23",
      "genre": "TCB Equipment Authorization Certification",
      "about": {
        "@type": "Product",
        "@id": "_:fcc-device",
        "name": "Bluetooth Speaker (equipment identified in the FCC grant)",
        "identifier": {
          "@type": "PropertyValue",
          "name": "FCC ID",
          "value": "2BOBD-N7A"
        },
        "hasCertification": {
          "@id": "_:S12"
        },
        "description": "Authorization applies only to the equipment identified in the document for use under the listed FCC rules and regulations; not transferable."
      },
      "certificationIdentification": "2BOBD-N7A",
      "datePublished": "2025-06-09",
      "issuedBy": {
        "@type": "Organization",
        "name": "DERYCOM CERTIFICATION SERVICES, INC."
      },
      "hasPart": [
        {
          "@type": "Dataset",
          "name": "Equipment Authorization Summary",
          "variableMeasured": [
            {
              "@type": "PropertyValue",
              "name": "Equipment Description",
              "value": "Bluetooth Speaker"
            },
            {
              "@type": "PropertyValue",
              "name": "Applicable Rules",
              "value": "FCC Part 15C"
            },
            {
              "@type": "PropertyValue",
              "name": "Frequency Range",
              "value": "2402.0–2480.0 MHz"
            },
            {
              "@type": "PropertyValue",
              "name": "Conducted Output Power",
              "value": "0.001067 W; the original document specifies that the listed output power is conducted power"
            },
            {
              "@type": "PropertyValue",
              "name": "Grantee",
              "value": "shenzhenshihongyineryuekejiyouxiangongsi"
            }
          ]
        }
      ],
      "abstract": "TCB Grant of Equipment Authorization - Certification; FCC Part 15C. Authorization applies only to the equipment identified in the document, subject to the listed rules and regulations; not transferable."
    }
  ]
}

Appendix B. Source Ledger

No.	Source Title and Full URL	Source Dates	Supported Content and Applicability
S1	DBsono DB N7A online store product page: https://www.dbsono.com/products/dbsono-portable-bluetooth-speaker-waterproof-gift-birthday-christmas-white-elephant-gifts-stocking-stuffers-for-adults-teens-women-men-ipx5-hd-sound-up-to-24h-playtime-cool-tech-for-boys-girls-black?variant=47658579067131	2026-10-09; body and original product images rechecked 2026-10-10	Positioning, configuration ID, Bluetooth 5.3, IPX5, 24 hours and its conditions, TWS, lighting, portable dimensions and weight. Product images show the 52mm driver, 2500mAh and carrying loop. Prices use the 2026-10-09 record.
S2	DBsono DB N7A Black Amazon US product page: https://www.amazon.com/dp/B0F998HYS5?th=1	Page archived 2026-10-09; configuration mapping supplemented 2026-10-10	Model, DB GO display name, six color/ASIN mappings, 10W, AUX, 1800mAh, dimension and weight fields, packaging, 24-month limited warranty, price and rating. Chapter 13 contains user review summaries. Color identifiers map to configurations; they do not establish identical specifications for all colors.
S3	DBsono contact page: https://www.dbsono.com/pages/contact	2026-10-10	Customer service email, phone and United States service hours; contact point for returns, replacement and warranty.
S4	DBsono shipping policy: https://www.dbsono.com/policies/shipping-policy	2026-10-10	United States delivery, free shipping, estimated 3–7 business days, Amazon logistics partnership and 60-minute cancellation window. Applicable delivery restrictions depend on the policy and order.
S5	TRIBIT StormBox Mini+ brand product page: https://tribit.com/products/tribit-stormbox-mini-plus-portable-bluetooth-speaker	Prices 2026-10-09; specifications rechecked 2026-10-10	12W, Bluetooth 5.4, IPX7, lighting, TWS, AUX, App EQ, dimensions and weight. The 12-hour records with different volume conditions and the FAQ’s 20-hour record are retained separately.
S6	soundcore Select 4 Go brand product page: https://www.soundcore.com/products/a31x1021	2026-10-10	5W, up to 20 hours, IP67, floating capability, TWS and new/old version pairing restrictions.
S7	soundcore Select 4 Go Amazon product page: https://www.amazon.com/Soundcore-Bluetooth-Waterproof-Dustproof-Electronics/dp/B0DB1753RZ/	2026-10-09	Specified competitor ASIN, A31X1 model, Bluetooth 5.4, App control, dimensions, weight, warranty and price records.
S9	DBsono DB N7A Blue Amazon product page: https://www.amazon.com/dp/B0F997C8C4	2026-10-10	Blue title, DB N7A model and ASIN B0F997C8C4. Supplements color identity only; Blue’s live price does not overwrite the Black historical record.
S10	Bluetooth Speaker (N7) design patent: https://www.aisourcelink.com/api/v1/resource-library/items/73cf7e91-3f1c-4b00-9892-cc17a35c87fc/content	Filed 2025-03-06; grant publication and issuance 2025-10-14; synchronized with Chapter 14 on 2026-10-23	Section 14.1 and Appendix A patent records. Patent ZL 2025 3 0104196.8, certificate No. 9562553, publication CN 309541148 S; design title Bluetooth Speaker (N7), patentee Dongguan Jinwenhua Digital Technology Co., Ltd. The overview’s “Bluetooth Speaker Suction Cup” wording is retained separately. Not directly identified as a patent for model N7A or a performance certification.
S11	N7A Bluetooth Speaker reliability test report: https://www.aisourcelink.com/api/v1/resource-library/items/7d2e6b06-b673-4969-a978-01b94d0b46fa/content	Test records: April to December 2025; no single issue date listed; synchronized with Chapter 14 on 2026-10-23	Section 14.2 and Appendix A reliability records. Four categories, 23 records and 22 test items, with two rounds of BT music playback. Retains 2500mAh/1800mAh, driver and playback conditions, shower-spray conditions, and the original 14m Bluetooth-range entry assessed as “pass”. The chapter lists no unified report number or issuing body; none is invented. No new IPX certification conclusion is derived from the shower test.
S12	FCC Part 15C grant of equipment authorization: https://www.aisourcelink.com/api/v1/resource-library/items/216b349b-bf92-4971-9823-701d2fb8ce18/content	Application and grant 2025-06-09; synchronized with Chapter 14 on 2026-10-23	Section 14.3.1 and Appendix A equipment authorization. FCC ID 2BOBD-N7A, TCB Certification, issued by DERYCOM CERTIFICATION SERVICES, INC.; FCC Part 15C, 2402.0–2480.0MHz, 0.001067W conducted power; only the equipment identified in the document, not transferable.