TWS wireless bluetooth headset

Communication distance: about 20 meters (in barrier-free environment)
Bluetooth version: V5.0+EDR
Working hours: about 3 hours
Standby time: about 60 hours
Charging time: about 1 hour
Battery type: Polymer lithium ion battery
Headset battery capacity: 3.7V 50mah
Headphone Battery Capacity: 3.7V 50mah
Charging time: about 1 hour
Engine room battery capacity: 3.7V 2000mah
Charging time: about 4 hours