F100334 Brand: N/A Model:V2-100B Quantity:1 Piece Color:Black Material:ABS Plastic Type:Interphone Bluetooth Version:V3.0 Transmt Distance:10 m Output Frequency Range:88-108 MHz Intercom Function:Yes Intercom Effective Distance:100 m Talk Time:8 Hour Standby Time:150 Hour Power Supply:Li-ion battery Working Current:0.5 A Waterproof Function:Yes Interface:1 x 3.5mm Expansion Card Capacity (Max.):Not Support Packing List: 1 x Interphone 1 x Earphones and microphone in component (70cm-cable) 1 x US plug 100~240V USB charger (100~240V / 2-flat-pin plug) 1 x USB cable (115cm-cable) 1 x Audio cable (120cm-cable) 1 x Installation accessories 2 x Installation screws 1 x English user manual