Color Black Brand NIZHI Model TT-026 Material Aluminum alloy Quantity 1 Piece Bluetooth Handsfree Yes Bluetooth Version V2.1 Operating Range 10 meters Total Power 3 W Channels 2.0 Interface 3.5mmOthersMicro USB Microphone Yes SNR 80dB Sensitivity 90dB Frequency Response 60~19KHz Impedance 3 ohm Applicable Products IPHONE 4IPHONE 4SIPADOthersIPHONE 5SSamsung / Sony / Nokia / HTC Radio Tuner No Supports Card Type MicroSD (TF) Max Extended Capacity 16GB Built-in Battery Capacity 500 mAh Battery Type Li-ion battery Talk Time 6 Hour Standby Time 8 Hour Music Play Time 3~4 hours Plug Specifications OthersUSB 2.0 Power Supply DC 5V Other Features Built-in high quality lithium battery; USB 5V external power supply; Built-in lithium battery capacity: 500mAh; Output power: RMS 3W; Speaker impedance: 3 ohm; With anti-slip pad design Packing List 1 x Bluetooth speaker 1 x 3.5mm male to male audio cable (50cm) 1 x Micro USB cable (50cm) 1 x Chinese / English user manual