Brand N/A Model B.M Quantity 1 Color Black + silver + pink Bluetooth Version Bluetooth v2.1 + EDR Operating Range 10 meter Compatibility Compatible with Bluetooth v2.0 / v1.1 Microphone Yes Channels 1 Total Power 3W Impedance 2.6 ohm 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 Devices with Bluetooth function Other Features Interface: micro USB TF card slot; Blue lights on when turn on the speaker; Red lights on when recharge the speaker. BQB Certification No Packing List 1 x Speaker 1 x Chinese / English user manual 1 x USB cable (50cm)