1. Bluetooth 5.3
2. Battery capacity: charging case 300mAh, earphone 25mAh
3. Use time: 3.5h
4. Standby time: 150h
5. Open the lid and take out the headset to turn on the computer, support master-slave switching, and summon Siri
6. Lighter type bullet cap design, zinc alloy mecha shell, full of science and technology