●Bluetooth Version: V 5.0
●Earbud battery : 40 mAh * 2
●Charging base: 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: ≥3 H
●Charging time:1-2 H
●Standby time: 150H
●Charging Interface: Micro
●Support HSP, HFP, A2DP, AVRCP