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Product information:

Bluetooth version: 5.0
Charging interface: TYPE-C
Power input: DC/5V
Battery capacity: 3.7V/60mAh
Talking/playing time: about 6 hours (hour)
Charging time: about 60 minutes (min)
Charging compartment battery capacity: 3.7V/750mAh
Support protocol: HSP1.2/HFP1.7, A2DP1.3/AVRCP1.6, SPP1.2/PBAP1.0
Sensitivity: 120±5dB
Frequency response range: 20-20000Hz
Impedance: 32 Ω