Brand NO Quantity 1 piece(s) Material ABS Color Black Type Electronic Device Function BT Bluetooth V2.0 Interphone Bluetooth Version 2.0 Transmission Range 10 m Intercom Function Yes Intercom Effective Distance 100m FM Frequency 87.5~108 MHz Interface USB Power Supply 400mAh battery Working Current 7mA Packing List 1 x Interphone 1 x Fix piece for headset 1 x Helmet clip 1 x Headset microphone (60cm) 1 x Audio cable (50cm max pull to 170cm 3.5mm to 2.5mm) 1 x Spare parts bag (1 x wrench 2 x screws) 1 x 100~240V power adapter (EU plug) 1 x US plug converter 1 x USB charging cable (120cm) 1x English user manual