Sensitivity: 107dB±3dB
Frequency response: 20 Hz – 20 KHz
Transmission distance: Up to 15 m
Speaker diameter: Φ32±0.2mm

Bluetooth version: V5.4
Hands-Free
Adjustable headband for maximum comfort
Music playback time: 65 hours at medium volume
Charging time: 5 hours
Built-in rechargeable battery (500mAH)