Features:

1. Two drivers Max. talking distance up to 100m, 3 drivers two-way wireless Bluetooth system

2. 120Km working speed, can talking normally

3. Windproof, rainproof design, can be all-weather use

4. Stereo music, audio function (cellphone, MP3 and GPS using A2DP to transmit)

5. DSP noise elimination function

6. CVC echo elimination function

7. Can be used as cellphone's Bluetooth handsfree earphone

8. Realize two-way full duplex wireless talkback function

9. Simple and easy to wear