Fangrui Product Details 1. A11b-a Lambskin Texture Ultra-thin Bluetooth Keyboard Leather Case With Pen Holder & Touchpad For Ipad Air 5 2022 Air 4 2020 10.9 & Pro 11 Inch 2021 2020 2018(black) 2. Features: 3. Not Just A Protective Case, Built-in Bluetooth Keyboard, More Powerful 4. The Keyboard And Leather Case Can Be Separated 5. Bluetooth Chip, Fast Speed, Low Power Consumption, Stable 6. Precise Cut For Easy Access To All Buttons And Ports, Giving You Smooth Operation 7. Stand, Pen Tray And Touchpad Function, Easy To Use 8. Easy To Insert And Remove 9. Tablets Are Not Included 10. Product Specifications: 11. Bluetooth 3.0 Standard Interface 12. Effective Distance: 10m 13. Modulation Method: Gfsk 14. Working Voltage: 3.0-4.2v 15. Working Current: Less Than 2.5ma 16. Standby Current: Less Than 0.3ma 17. Sleep Current: Less Than 40 Microamps 18. Charging Current: Greater Than 200ma 19. Standby Time: More Than 100 Days 20. Charging Time: 3-4 Hours 21. Lithium Battery Capacity: 200mah 22. Sustainable Working Hours: 100 Hours 23. Lithium Battery Life: 3 Years 24. Button Force: 80+-10g 25. Button Life: 5 Million Clicks 26. Working Temperature: -10-55 Degrees Celsius 27. Weight: 700g 28. Product Size: 25.4x20x2.4cm