BT-S2 Single 2.4GHz Bluetooth V3.0 Interphone HeadsetsThe InterPhone is a Bluetooth Headset designed for the motorcycle rider and penger who wish to have clear and riable wiress communications while riding. This headset is compatible with Bluetooth clular phones and can be d to any sort of hmet for motorcyclists. 1. Wiress headset for bluetooth enable cl phone at a range of up to 10 meters. - Bike-to-bike intercom for rider& penger or two separate bikes up to 800-1000 - Up to 10 hours talk time when connected to cl phone. - Up to 6 hours talk time when using the intercom feature. - Up to 300 hours standby 2. Call out, call answer, call reject, call hang up. 3. Receive a cl phone call automatically 4. Support audio transfer. 5. Support the last number redialing. 6. FM Radio function 7. Enjoy the cl phone music through A2DP or connect GPS 8. Control cl phone music through AVRCP: forward, backward, play, pause 9. Automatic switching among bluetooth cl phone, intercom, stereo music. 10. With DSP echo canclation and noise suppression technology, crystal clear voice is d in a high speed. 11. Button pan is water-proof and sun-proof, while the design is durable. 12. Audio cable to connect MP3, GPS, walkie-talkie and so on.