1. Bluetooth standard interface
2. Effective operating distance: 10 meters
3. Modulation method: GFSK
4. Working voltage: 3.7-4.0V
5. Working current: <8MA
6. Standby current: <0.3MA
7. Sleep current: <50UA
8. Charging current: >200mA
9. Standby time: >100 days
10. Charging time: 2-3 hours
11. Lithium battery capacity: 200mAh
12. Sustainable working hours: >30 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. Charging port: Micro USB interface
18. Not just a protective case, built-in bluetooth keyboard, more powerful
19. Bluetooth chip, fast speed, low power consumption, stable
20. Precise cut for easy access to all buttons and ports, giving you smooth operation
21. Touchpad, bracket and pen tray function, easy to use
22. Dimensions: 25.9x20x2.2cm
23. Weight: 715g

Note: The product does not include tablet PC.