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 200mA
9. Standby time: about 100 days
10. Charging time: 3-4h
11. Lithium battery capacity: 200mAh
12. Sustainable working hours: >50 hours (up to 100 hours with lights off)
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. With touchpad and colorful backlight
21. The tablets PC is not included