1. Bluetooth standard interface
2. Effective operating distance: 10m
3. Modulation method: GFSK
4. Working voltage: 3.0-4.2V
5. Working current: < 8mA
6. Standby current: < 0.3mA
7. Sleep current: < 40uA
8. Charging current: about 100mA
9. Standby time: about 100 days
10. Charging time: 2-3h
11. Lithium battery capacity: 280mAh
12. Sustainable working hours: >50 hours
13. Lithium battery life: 3 years
14. Button force: 80+/-10g
15. Button life: 5 million clicks
16. Operating temperature: -10 to 55 degrees Celsius
17. Not just a protective case, built-in bluetooth keyboard, more powerful
18. Bluetooth chip, fast speed, low power consumption, stable
19. Stand function, easy to use
20. Easy to operate with touchpad
21. The tablets PC is not included