Blutooth version and Chipset:
BT5.0 / AC6973
Earbuds speaker driver size: dia 13mm
Rated output power: : 5mW
Range: 10M ;
Impedance: 32Ω
Frequency response: 20Hz-20Khz
Signal noise ratio: 101dB
Li-polymer Battery 40mAh 3.7V
Charging station: 400mAh 3.7V
Case can 3-4 times charges the earbuds
Charging case 2hours to be fully charged
