●Bluetooth Version: 5.0
●Earbud battery : 40mAh * 2
●Charging base: 503040,300 mAh
●Transmission distance: 10 M
●Impedance: 32 Ohms
●Frequency range: 20 Hz-20 KHz
●Operating voltage: 3.7V (3.3-4.2V)
●Play music time: 4 H
●Charging time:1-2 H
●Standby time: 150H
● Charging port: Type C