Motorcycle Helmet Wireless Bluetooth Intercom Headphone resolve your communication problem when riding a motorcycle. It's convenient for communication between the riders or between the rider and the pillion. With DSP echo cancellation and noise suppression technology， crystal clear voice quality gives you clear communication. It's perfectly suitable for motorcycle， skiing， snowmobile， etc.

Features:
[Intercom Function]
Direct full-duplex intercom between rider & passenger or two riders up to 500 meters. It supports three riders connected， two people intercom.
[Perfect Sound Quality & Strong Compatibility]
With DSP echo cancellation and noise suppression technology， crystal clear voice quality makes sure clear communication when fast riding. You can also share stereo music and GPS with perfect sound quality. With Bluetooth technology， it's compatible with almost all Bluetooth-enabled mobile devices such as， for iPhone7 / 6 / 6Plus SE， for Samsung Galaxy， for HTC， Tablet PC， Laptop， etc.
[Switch between Music and Call & FM Radio]
Automatic switching among mobile calls， intercom and stereo music. Enjoy the music through Bluetooth enable phone / MP3 / GPS/ FM. The music can be controlled via AVRCP， such as play， pause， previous song， next song， etc.
[Endurance Time]
With built-in 400mAh Polymer Battery， it offers 6 hours of talking time， 6 hours of intercom time， 7 hours of music time and standby time is about 300 hours. Ultra long endurance time which makes sure communication and intercom smoothly on the road.
[Simple Operation & Waterproof and Sun-proof Design]
Control calls on their mobile phones， such as， answer call automatically， call out， answer， reject， hang up， last number redial. Button panel is waterproof and sun-proof which is durable.

Specification:
Bluetooth: V2.1 + EDR
Operation Distance: 10m
Intercom Distance: 500m
Frequency Response: 100HZ-5KHz
Sensitivity: 40db
Impedance: 32+-15%ohm
Battery Capacity: 400mAh
Music Time: about 7 hours
Talking Time: about 6 hours
Intercom Time: about 6 hours
Standby Time: about 300 hours
Item Size：8.2 * 4.8 * 1.3cm / 3.23 * 1.89 * 0.51in
Item Weight: 35g / 1.21oz
Package Size: 20 * 13 * 5cm / 7.87 * 5.12 * 1.97in
Package Weight: 342g / 12.04oz

Package List:
1 * Bluetooth Receiver
1 * Ear Speaker and Microphone 
1 * Screw Driver
4 * Velcro Pad 
1 * Headphone Clip with Fastening Screws