Specifications:

BT Version: V5.4

BT Protocol: HFP1.7,1.2, A2DP1.3, AVRCP1.6, SPP1.2 and PBAP1.2, BDR/BLE

Transmission Distance: 10M

Rated Power: 50mW

Power Amplifier Type: Chip built-in

Receive Sensitivity: 120dB

Impedance: 32Ω

Frequency Response: 20-20KHz

Battery Capacity For Earphone: 60mAh, 3.7V

Charging Case: 950mAh, 3.7V

Charging Time (h): About 1.5 hours

Using Time: 8-10 hours

Standby Time (h): 80-120 hours

Charging Criteria: With Charging Case