Hengjiang A7 Black Knight Motorcycle Helmet Bluetooth Headset Ultra-Long Battery Life A30 Upgraded Version

•Motorcycle Bluetooth equipment

Hengjiang A7 Black Knight Motorcycle Helmet Bluetooth Headset Ultra-Long Battery Life A30 Upgraded Version

CN¥79.00

SKU: 100318059038

Status:In Stock (11)

ID: 100318059038

Weight: 160.00 g

Dims:134x96x56 mm

Specifications

Installation: Magic tape
Microphone type: line
Type: Bluetooth headphones
Mounting Position: Helmet attachment

Variants / Sale Attributes

color: [Black Knight Hard Wheat] Exclusive for Takeout

Package Contents

Bluetooth host *1, charging cable *1, manual *1, base stand *1, speaker Velcro *4, speaker microphone *1

Product Description

Product Specifications

Overview

Brand: HENGJIANG ()
Model: Black Knight A7 (A7)
Product Type: Helmet Bluetooth Headset for Delivery Riders ()
HD Noise Reduction Calling: Clear calls in busy urban environments without interference
Waterproof Rating: IP67 deep waterproof and sweat resistant, suitable for use in rain and can be washed without damage

Battery Life

Item	Detail

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Additional details

Bluetooth Version: 5.3 - 6.0 (depending on phone compatibility)
Working Distance: 30 meters
Compatibility: Compatible with 99% of helmets, secure fit without falling off

Audio Quality

Master-level tuning with sweet highs, accurate mids, deep lows
40mm large dynamic speaker drivers with 360° surround sound coverage
Frequency Response: 5000Hz to 20000Hz

Design & Installation

Quick and easy installation with magic tape attachments for speakers and microphone
Main unit clips securely to helmet side with screws for stable fit

Additional Features

Colorful ambient lighting with customizable effects — "Mecha style" by day, "Street light blade" by night
Automatic call answering for safer riding
Bluetooth battery level display on phone for real-time power monitoring

Additional details

Materials: ABS plastic, silicone, and other durable materials
Weight: Main unit approx. 50 g (±5 g)

Bluetooth Main Unit x1

Base Mounting Bracket x1

Noise Reduction Windproof Cotton x2

Speaker Magic Tape x4

Speaker Microphone x1

Main Unit Magic Tape x1

The HENGJIANG Black Knight A7 helmet Bluetooth headset is designed specifically for delivery riders, offering superior noise cancellation, IP67 waterproof protection, ultra-long battery life with fast charging, and excellent sound quality. Its quick installation and compatibility with most helmets make it ideal for all-weather, all-day use, enhancing safety and communication during rides.

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