1. Bluetooth: 5.3, Chip: JL AC6973D4
2. Battery capacity: charging case 500mAh; Headset 40mAh
3. Use time: 7 hours; Standby time: 180 hours
4. Size: 74*51.5*31mm; Total weight: 59.5g
5. Over-the-ear design, stable and comfortable to wear, charging case with digital power display
6. Support master-slave switching, summoning Siri