Model Q-BT-V1 Quantity 1 piece(s) Material PVC Color Black Type Electronic Device Function Motorcycle helmet bluetooth headset Bluetooth Version 2 Transmission Range Up to 10 m Power Supply AC 100~240V Working Current 500mA Other Features Applicable to speeds of 120Km and above; Automatically and safely receiving phone calls; Advanced A2DP & EDR bluetooth function; DPS noise elimination function; Built-in 300mAh battery; Standby time: 240hours; Talking time: About 3hours; Master bluetooth BC5 class 2 program; National level 5 waterproof standard Packing List 1 x Headset 1 x Mic (40cm) 1 x USB cable (60cm) 1 x 100~240V power adapter (2-flat-pin plug) 1 x Fixed mount 1 x Clip 2 x Screws 1 x English / Chinese manual