Brand N/A Model BT SPEAKER Quantity 1 Color Deep blue + black Bluetooth Version 2.1+EDR Operating Range 10 meter Compatibility V2.0/V1.1 Microphone Yes Channels 1 Total Power 3W Impedance 2.6ohm Signal to Noise Ratio(SNR) 96dB Radio FM Radio(87.5~108MHz) Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 500mAh Compatible With Cellphones with bluetooth BQB Certification No Other Features Interface: Micro USB / TF card slot; Blue light when switched on; Red light when charging; TF card supports Max 8GB. Packing List 1 x Speaker 1 x Cable (50cm) 1 x Chinese / English user manual