TWS WIRELESS HEADST AIR 78

"Bluetooth version: Bluetooth V5.3 Bluetooth reception distance: straight line without obstacles not less than 10 meters Working time:Playing music about 6-8H(Apple cell phone 80% volume) Talking time: about 6-8H Standby time with power off: 6 months Headset charging time:about 2 hours Charging time of the charging box:about 2-2.5 hours Charging time of the charging box to the headset:about 2 times Headset battery:601218 70mah Charging case battery:602040 350mAh"