Brand DOSS Model DS-1189 Quantity 1 Color Blue Bluetooth Version V3.0 Operating Range 10 meter Compatibility All cellphones Microphone Yes Channels 2 Total Power 1.5W Impedance 6ohm Signal to Noise Ratio(SNR) >=86dB Radio N/A Supports Music Format MP3 Power Supply Built-in battery Built-in Battery Capacity 500mAh (speaker) 1020mAh (docking) Compatible With All Cellphones Other Features Smart voice indicating (Chinese / English); Metal appearance; With wireless charging dock providing charge for speaker cellphone and other devices; Charging dock: Li-ion battery: 3.7V / 1020mAh output voltage: DC 5V / 800mA; Speaker: built-in battery: 3.7V / 500mA impedance: 6ohm rated power: 1.5W frequency: 65Hz~20KHz distortion: THD =55dB; Supports format: MP3 / MP4 BQB Certification Yes Certification QDID:B019106 Packing List 1 x Speaker 1 x USB cable (34cm) 1 x USB adapter cable (13cm) 1 x 2.5mm to 3.5mm audio cable (33cm)