1With automatic answering function, automatic reception of mobile phones, the speed is up to 120 km/h, and the conversation can last for 12 hours, freeing your hands and ensuring safe riding. 23.5mm audio input, suitable for stereo music on any GPS or MP3 mobile phone equipped with Bluetooth. Can be used with external media players (eg MP3/portable CD). 3The 1200m/0.7mile intercom can be widely used, is really suitable for motorcycle helmets, snowmobiles, snowboards, beach bikes. 4When you are not riding a bicycle, it also can be used as a bluetooth headset and wireless music headset, very useful. 5This bluetooth intercom is compact and convenient. The plastic and rubber materials are stable and have IP65 waterproof. Item Type: Bluetooth IntercomMaterial: ABS + MetalBuilt-In Lithium Battery: 850mAhMaximum Intercom Distance: Approx.1200m/0.7mileChip: CSR BC5Talk Time: About 12 HoursStandby Time: About 400 HoursCharging Time: About 2.5 HoursSpeaker Power: 0.12WWorking Voltage: 3.3-4.2VWorking Temperature: -10-50Waterproof Rating: IP65Connection Method: BluetoothMaximum Number of Speakers: 2Applicable Helmet Types: Universal, Open Helmet, Lifting Helmet, Full Face Helmet, Off-Road Motorcycle HelmetMaximum Support: Full Duplex Intercom for Two Drivers, Six DriversStereo Music/Audio: A2DP and EDR Bluetooth Phone/MP3/GPS/Hi-FiBluetooth Version: Bluetooth 3.0How to Use:1. Connect the headset to the intercom2. Turn on the bluetooth connection3. You can use 2 x V6 Intercom2 x Headphone2 x USB Charger Cable1 x Screwdriver4 x Screw4 x Cotton Sticker2 x Clip1 x Instruction Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.