H-109C Touch Bluetooth Keyboard Leather Case with Rear Three-fold Holder For iPad Pro 11 inch 2021 & 2020 & 2018 / Air 2020 10.9(Black)

Features:
1. Not only a protective case, built-in Bluetooth keyboard, more powerful
2. The keyboard and leather case can be separated design
3. Bluetooth chip, fast speed, low power consumption, stable
4. Precise cutting, easy access to all buttons and ports, providing you with smooth operation
5. Tri-fold stand, pen slot and touch function, easy to use
6. Easy to insert and remove
7. Tablet PC and stylus are not included

Specifications:
1. Bluetooth version: 3.0
2. Effective operating distance: 10 meters
3. Modulation method: GFSK
4. Working voltage: 3.0-4.2V
5. Working current: less than 2.5mA
6. Standby current: less than 0.3mA
7. Sleep current: less than 40 microampere
8. Charging current: more than 200mA
9. Standby time: more than 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. Working temperature: -10-55 degrees Celsius