Bluetooth version: V5.3
Stand-by time:140 days
Talk time: 4 hours
Music playtime: 5-6 hours * 3Times
Charging time: 1.5 hours
Charging voltage: DC 5V
Frequency range: 20-20000Hz
Transmission distance :10m-15m
Battery capacity: 30mAh
Charging case : 300mAh