Color Black Model KR-8100 Material Plastic + aluminum alloy Quantity 1 Piece Shade Of Color Black Bluetooth Handsfree Yes Bluetooth Version V2.1 Operating Range 10m Total Power 3 W Channels 2.0 Interface 3.5mmUSB 2.0OthersMicro USB Microphone Yes SNR >=85dB Sensitivity 500mV Impedance 4 ohm Applicable Products IPHONE 5IPHONE 4IPHONE 4SIPHONE 3GIPHONE 3GSIPODIPADOthersIPHONE 5SIPHONE 5CAndroid cellphone Radio Tuner Yes FM Frequency 87.5~108MHz Supports Card Type MicroSD (TF) Max Extended Capacity 32GB Built-in Battery Capacity 500 mAh Battery Type Li-ion battery Talk Time 4 Hour Standby Time 12 Hour Power Supply DC 5V Packing List 1 x Speaker 1 x Audio cable (113cm) 1 x Data cable (51cm) 1 x Battery 1 x English manual