Brand N/A Quantity 1 piece(s) Material ABS Color Black Type Electronic Device Function Bluetooth Interphone Bluetooth Version V3.0 Transmission Range Max. 10 m Intercom Function Yes Intercom Effective Distance Max. 1200m Interface USB Power Supply 500mAh battery Working Current 3mA Other Features DSP noise elimination; Key base cover waterproof and sun block design; Automatic safety answering phone calls; Advanced A2DP & EDR Bluetooth function Packing List 1 x Intercom 1 x Headset fixed suit (2 x fixed part 2 x screws) 1 x Headset microphone (50cm) 1 x USB charging cable (50cm) 1 x US Plug 100~240V charger 1 x English manual