Fangrui Product Details 1. Hb119b 10 Inch Universal Tablet Wireless Bluetooth Keyboard With Touch Panel 2. Bluetooth Version: 3.0 3. Effective Distance: 10 Meters 4. Standby Time: 100 Days 5. Continuous Working Time: 70 Hours 6. Charging Time: 4-5 Hours 7. Lithium Battery Capacity: 200mah 8. Lithium Battery Life: 3 Years 9. Button Life: 5 Million Times 10. Ios System 13.4 And Above Support Mouse 11. Can Be Connected To Digital Products Such As Tablets And Laptops 12. Size: 24.8x15x0.4cm 13. Weight: 196g 14. Special Note: The Touchpad Function Is Only Supported On The For Ipad With Ios 13 And Above Under The For Apple System. For Ipad Air Does Not Support Touch Function, Other Models Need To Be Upgraded To Ios13 Or Higher To Use The Touchpad Function. Android And Microsoft Systems Do Not Need To Be Upgraded And Can Be Used Directly