Product name: XG31 wireless BT headset
Headphone battery: 40 mA
Charging box battery: 300 mAh
BT version: 5.0 + EDR
Charging time: 0.8 hours
Speaker frequency response: 20Hz~20KHz
Transmission distance: 10m
Music playback time: 4 hours
Talk time: 4 hours

Standby time: 120 hours