C12B Detachable Pen Slot Bluetooth Keyboard Leather Tablet Case For iPad Pro 12.9 inch 2021/2020/2018(Black)

1. Bluetooth 3.0 standard interface
2. Effective operating distance: 10 meters
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: 200mA
9. Standby time: about 100 days
10. Charging time: 3-4 hours
11. Lithium battery capacity: 200mah
12. Sustainable working hours: 100 hours
13. Lithium battery life: 3 years
14. Button force: 80 +/-10g
15. Button life: 5 million clicks
16. Operating temperature: -10+/-55 degrees Celsius
17. Charging interface: Tpye-C
18. Weight: 891g
19. Size: 29.4x20.5x2cm