Description: Motorcycle Bluetooth Headset realizes full-duplex intercom with the highest speed of 120km/h and the longest distance of 1200m The Two-way Full-duplex Wireless intercom automatically answers the incoming calls no matter when you are riding, cycling, skiing, hiking or mountaineering The connection distance of the 6 Riders Interphone with the phone can reach 10 meters; Supports last numbe redial Motorcycle Helmet Intercom Interphone adopts Bluetooth 3.0 connectivity, priority switching between phone, intercom and stereo music IP5 Waterproof- this wireless communication system will make your outdoor riding more exciting even in raining or snowy days Specification: Model: V6-1200 Material: Aluminum Alloy Bluetooth Version: 3.0 Waterproof rating: IP5 Dimensions: Appprox. 11 x 7 x 1.5cm / 4.3 x 2.8 x 0.6 inch Chip: CSR BC5 Battery capacity: 550 Battery type: Polymer charge and discharge times: 500 Operating voltage: 3.3V-4.2V Talk time: 8H Standby time: 150H Charging time: 2.5H Speaker power: 0.25W Operating temperature range: -10C to +45C (minimum and maximum operating temperature) Charger specification: DC 5V 500mA Package Includes: 1 Piece Bluetooth intercom host 1 Piece Stereo Headset 1 Piece Helmet Mounting Clip 1 Piece Charging Cable 1 Piece English manual 2 Pieces Screws 1 Piece Screw Driver Note: Please allow 1~3mm differs due to manual measurement. (1 inch = 25.4mm) Product color may vary slightly from what appears online due to monitor differences.