Brand W&Q Model V30 Quantity 1 Color White Bluetooth Version Bluetooth v2.1 + EDR Operating Range 10 meter Compatibility N/A Microphone No Channels 2 Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 1200mAh Compatible With Cell phone tablet PC computer with Bluetooth function BQB Certification No Total Power 6W Impedance 4ohm Signal to Noise Ratio(SNR) >=80dB Other Features Using high-fidelity full-range magnetically shielded speaker unit; Supports TF card up to 32GB; Interface: Mini USB / TF card slot / 3.5mm jack; Stereo signal transmission; Continuously playing 6~8 hours; AUX external audio input supports computer MP3 player cell phone iPod CD player etc. Packing List 1 x Speaker 1 x English user manual 1 x Charging cable (84cm) 1 x Audio cable (84cm)