Specification:Material Metal Alloy Bluetooth Metal Wireless speakerColor OEM Bluetooth Metal Wireless speakerSize 85 x 185 x 43mmBluetooth version Bluetooth CSR 3.0+EDRTransmission range Over 10MFrequency Range 100Hz-20KHzTHD ��1%SNR ��85dBBattery Capacity Li-polymer batteryRated Voltage 5VRated power 2.2WCharging time 1.5 hoursPlaying time 3-5 hoursLoudspeaker 4�� 3W 40MMFunction Wireless buletooth，handfree.support TF cardAccessories Speaker， USB charging cablePackage Gift packing