Tsm Helmet to Helmet Communicator Motorcycle Intercom Motorbike Helmet Headset Intercom 2-Way Commun

Perfect device for 2 people communicating when driving motorcycle.

Features:
Freely talking with high quality voice.
Adjustable microphone, so easy to control.
2 volume controller for both earphones.
Enjoy stereo audio from portable sets(CD, MP3, MP4,two way radio,cellphone etc).
Mini appearance for convenient operation.
Made of durable material, long time use.
Lower power consumption.

Specifications:
Color: Black
Power source: UM-4(size AAA) * 2 pieces
Rated output: 150mW
Frequency response: 50 to 20,000Hz +/-3dB
Output circuit: 32?, 150mW, 84dB±3dB
Host dimension: 63 * 56 * 25mm
Operating temperature: -20 to +50 degree
Package Size: 30 * 20 * 3cm / 11.8 * 7.9 * 1.2in
Package Weight: 144g / 5.1oz

Package List:
1 * Intercom Host
2 * Earphone with Mic
1 * Audio Cable
1 * English User Manual