Features:
Bluetooth Version V4.0 Bluetooth Chipset CSR Radio Freq 2402-2480MHz Transmit Power Class II Receiver Sensitivity -92dbm Charging Voltage DC 5V Battery Type Rechargeable Li-Polymer 100mAh Talk / Music Time 7 hrs / 6 hrs Standby Time 240 hrs Charging Time 1.5 hrs Weight 23G Dimension L55 x W25.5 x H14.7