Bluetooth 5.3; chip: JL AC6973D4
2. Battery capacity: charging case 500mAh; Headset 110mAh
3. Use time: 12 hours; Standby time: 300 hours
4. Size: 98*66.5*30mm; Total weight: 87g
5. Fully open air conduction TWS wireless bluetooth headset
6. support master-slave switching, summon Siri"