1. Capacity 10000 mAh

2. Battery - 21700 lithium battery

3. External electromagnetic suction battery

4. Adjustable headband size

5. Material: ABS + lithium battery

6. Plug and play, plug and charge when powered on, long press to turn off or remove the battery if you don't want to charge

7. Support PD20w, removable external battery

8. Charging time is about 2.5 hours

9. Usage time is about 2-4 hours

10. Single net weight: 431g

11. Product + packaging: 557g

12. Packaging: 21*17*6.5 cm

13. Carton: 55*47*36.5CM, 32pcs, 18.9kg