T-201D Detachable Bluetooth 3.0 Ultra-thin Keyboard + Lambskin Texture Leather Case for iPad Air / Air 2 / iPad Pro 9.7 inch, Support Multi-angle Adjustment / Backlight (Black)

1. Bluetooth version 3.0
2. Effective distance within 10 meters
3. Lithium battery capacity: 450mAh
5. Charging time is 2-3 hours
6. Sustainable working hours of 250 hours (without backlighting)
7. Standby for 100 days
8. Working voltage: 3.0-4.2V
9. Working current: <2.5mA
10. Standby current: <0.3mA
11. Sleep current: <40uA
12. Charging current: >200mA
13. 5 million key click lives