1. Bluetooth 5.4, chip: JL AC6973D4
2. Battery capacity: charging case 300mAh, earphones 35mAh
3. Use time: 6 hours
4. Size: 55x55x20mm
5. Net weight: 32.2g
6. Support master-slave switching and summon Siri
7. Donut-style appearance, with breathing atmosphere light