Main details:
Speaker Size: 40mm
Impedance: 32 Ohm
Sensitivity: 85dB +/-3dB
Frequency Response: 20Hz-20kHz
Support forBT talk MP3
Bluetooth version:5.0
Transmission range: 10m
Built-in rechargeable battery: 300mAh
Stand By Time: 80 hours
Music Play Time: 6 hours
Charging Time: 2 hours