Hiphophippo 2014 New Update Motorcycle Audios Snowmobile Bluetooth Multi Interphone Headsets Intercom Set (Black) A:Shkmbt88i update,sound more clearly and loudly.Higher reliability.Better Quality&Materials&Package B:It can pair rider to rider or rider to pillion;It can pair 3 interphones at a time, and easily switch to any 2 of them C:Up to 120km/h speed;Up to 7 hours talking time;Up to 7 hours listening music;Standby time:100 hours;500 mAh Li Polymer battery D:Water-resistance.Wind noise DSP cancellation;FM radio;GPS voice instructions. E:500 meters Intercom range for drivers and passengers