Impedance: 32R Bluetooth: 4.2 Power: 2.402GHMZ-2.48GHMZ Bluetooth Distance: 10 M Working Voltage: 3.7V-4.2V Talk Time: 4 H Music Time: 1.5 H Standby Time: 48 H Charging Time: 1 H Bluetooth Battery Capacity:> 35mAh Charging Box Battery Capacity:> 100mAh
