1. Bluetooth standard interface
2. Effective operating distance: 10m
3. Modulation method: GFSK
4. Working voltage: 3.0-4.2V
5. Working current: < 2.5mA
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: 150mAh
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. The tablets PC is not included