Color Black + Red Model 7220S Material Silicone Quantity 1 Set Shade Of Color Black Bluetooth Handsfree Yes Bluetooth Version V2.1 Operating Range 10M Total Power 6 W Channels 2.0 Interface 3.5mmUSB 2.0 Microphone Yes SNR 75dB Sensitivity 800mv Frequency Response 80Hz~20KHz Impedance 4 ohm Applicable Products OthersUniversal Radio Tuner No Max Extended Capacity N/A Built-in Battery Capacity 7000 mAh Battery Type Li-polymer battery Talk Time 25 Hour Standby Time 250 Hour Music Play Time 30 Hours Plug Specifications OthersUSB Packing List 1 x Bluetooth Speaker 1 x Audio Cable (30cm) 1 x Charging Cable(80cm)