Fangrui Product Details 1. A11b-a Lambskin Texture Square Keycap Bluetooth Keyboard Leather Case With Touch Control For Ipad Air 5 4 2020 10.9 Pro 11 Inch 2021 & 2020 & 2018(lilac) 2. Features: 3. Not Only A Protective Case, Built-in Bluetooth Keyboard, More Powerful 4. The Keyboard And Leather Case Can Be Separated Design 5. Bluetooth Chip, Fast Speed, Low Power Consumption, Stable 6. Precise Cutting, Easy Access To All Buttons And Ports, Providing You With Smooth Operation 7. Stand, Pen Tray And Touch Function, Easy To Use 8. Round Keycaps 9. Easy To Insert And Remove 10. Tablets Are Not Included 11. Specification: 12. Bluetooth Version: 3.0 13. Effective Distance: 10m 14. Modulation Method: Gfsk 15. Working Voltage: 3.0-4.2v 16. Working Current: Less Than 2.5ma 17. Standby Current: Less Than 0.3ma 18. Sleep Current: Less Than 40ua 19. Charging Current: More Than 200ma 20. Standby Time: More Than 100 Days 21. Charging Time: 3-4 Hours 22. Lithium Battery Capacity: 200mah 23. Sustainable Working Hours: 100 Hours 24. Lithium Battery Life: 3 Years 25. Button Force: 80+-10g 26. Button Life: 5 Million Clicks 27. Working Temperature: -10-55 Degrees Celsius 28. Notice: 29. Ios System 13.4 And Above Can Use The Mouse (mouse Is Not Included) 30. Under The Ios System, The Touchpad Function Only Supports Tablet Computers With Ios 13 And Above 31. The Touch Function Is Not Applicable To Ipad Air, Other Models Need To Be Upgraded To Ios 13 Or Higher To Use The Touchpad Function 32. Android And Microsoft Systems Do Not Need To Be Upgraded And Can Be Used Directly 33. The Actual Product Is Subject To The Title Model, The Picture Model Is For Reference Only