Fangrui Product Details 1. M10-c 2 In 1 Removable Bluetooth Keyboard + Leather Tablet Case With Touchpad & Holder For Lenovo Tab M10 Tb-x505x 2. Using Stable Performance Chip 3. Built-in 220ma Lithium Battery, Can Be Used Continuously For 60 Hours 4. Micro Usb Cable Charging, Charging For About 3 Hours 5. Sleep Function, If No Operation Is Performed, The Keyboard Will Automatically Enter The Power Saving Mode Within 15 Minutes 6. Ios, Android, And Windows Are Universal Or Single-system Use 7. 59 Button Design, With 14 Ipad Shortcut Function Keys 8. The Buttons Have Been Silk-printed With Uv Peritoneal Treatment, Which Is Durable And Will Not Fade After 5 Million Rubs And Knocks. 9. The Surface Of The Keyboard Adopts Wire Drawing Process, Which Is Very Textured 10. Scissor Button Design, Sensitive Typing, Fast Response And Good Hand Feeling 11. Modulation Mode: Gfsk 12. Working Voltage: 1.8-3.6v 13. Charging Time: 3 Hours 14. Lithium Battery Capacity: 220 Ma 15. Sustainable Use Time: 60 Hours 16. Lithium Battery Life: 3 Years 17. Standby Time: 30 Days 18. Size: 258x172x7.7mm 19. Net Weight: 560g