bluetooth intercom and interphone 1.bluetooth 1000 meters 2.factory OEM,ODM 3.mp3/ ... Chip brand: CSR Brief Description:1.Long range-1000 meters intercom, Bluetooth interphone kits for helmet motorcycle, Snowmobile, ski, ATV etc.2 ... /G.W:15.75KGS/50pcs/ctn 6 riders motorcycle multi-interphone/intercom/ bluetooth walkie talkie Product Introduction: 1) Host machine 2) Clamp ...