Fangrui Product Details 1. Op17-a Ultra-thin Detachable Bluetooth Keyboard Leather Tablet Case With Touchpad 2. Multi-angle Stable Support To Meet The Needs Of Different Angles. 3. Detachable Keyboard, More Convenient To Use. 4. All-round Protection, To Prevent The Four Corners Of The Equipment From Bumping, Wear And Tear. 5. Low-noise Keys Do Not Disturb Others. 6. Bluetooth Chip, Stable Connection, Fast Speed And Low Power Consumption. 7. Parameters: 8. Bluetooth 3.0 Standard Interface 9. Effective Operating Distance: 10 Meters 10. Modulation Mode: Gfsk 11. Working Voltage: 3.0-4.2v 12. Working Current: Less Than 2.5ma 13. Standby Current: Less Than 0.3ma 14. Sleep Current: Less Than 40ua 15. Charging Current: Greater Than 200ma 16. Standby Time: Greater Than 100 Days 17. Charging Time: 3-4 Hours 18. Lithium Battery Capacity: 200mah 19. Sustainable Working Time: 100 Hours 20. Lithium Battery Life: 3 Years 21. Key Force: 80+-10g 22. Key Life: 5 Million Clicks 23. Working Temperature: -10 -+55 Degrees