Blutooth version：BT5.0
Range: 10M ;
Impedance: 32Ω
Frequency response: 20Hz-20Khz
Signal noise ratio: 101dB
Li-polymer Battery 50mAh 3.7V
Charging station: 400mAh 3.7V
Case can 2-3 times charges the earbuds
Charging case 2 hours to be fully charged
Earbuds playback time:
about 3-3.5hours ( Game time)
about 4-5 hours ( Music time)
