Color Green + White Model S08 Material Aluminium Quantity 1 Piece Bluetooth Handsfree Yes Bluetooth Version V3.0 Operating Range 10 meters Total Power 3 W Channels 2.0 Interface 3.5mmOthers Microphone Yes Sensitivity 95dB Frequency Response 280Hz~16KHz Impedance 32 ohm Applicable Products Others Radio Tuner Yes FM Frequency 87.5~108MHz Supports Card Type MicroSD (TF) Max Extended Capacity 8GB Built-in Battery Capacity 520 mAh Battery Type Li-ion battery Talk Time 2~3 Hour Standby Time 48 Hour Music Play Time 4~5 Hour Plug Specifications Others Power Supply DC 5V Other Features Can be as a external wired speaker or bluetooth speaker; Supports hands-free speaking; Supports control by cellphone; Supports choose last next and pause; Can watch moive or voice talking on computer w/ bluetooth adapter. Packing List 1 x Speaker 1 x Audio charging cable (49cm)