YESER Wired and Wireless BT-S2 Motorcycle Intercom Bluetooth Motorbike Music Interphone for Helmet Headset FM Wireless headset for bluetooth enable cell phone at a range of up to 10 meters The Inter Phone is a Bluetooth Headset designed for the motorcycle rider and passenger who wish to have clear and reliable wireless communications while riding Support the last number redialing,FM Radio function Enjoy the cell phone music through A2DP or connect GPS Audio cable to connect MP3, GPS, walkie-talkie and so on