1, Bluetooth 5.3; chip: JL AC69732, Battery capacity: charging case 300mAh; Headphones 30mAh3. Use time: 4 hours; Standby time: 150 hours4, Size: 60.6*45.2*21.7mm; Total weight: 58.8g5. Support master-slave switching, up and down switching, summoning Siri, sliding to adjust the volume
