... bluetooth motorcycle interphone Key features:Bluetooth 2.0+EDR, with Headset, Handsfree Advanced Audio Distribution, Audio Video Remote Control Profiles ... supported. (1) Can work as an interphone, Bluetooth Headset/Handsfree can inter comunication. (2) Call out, call answer ... phone call and Bluetooth stereo music playback. (10)With single Mic software echo cancellation and noise suprression technology ...