BM20S Backlight Diamond Texture Bluetooth Keyboard Leather Case with Triangle Back Support For Lenovo M10 Plus 10.3 inch TB-X606 TB-X606F(Black + Black) Features: 1. Not just a protective case, built-in bluetooth keyboard, more powerful 2. The keyboard and leather case can be separated 3. Bluetooth chip, fast speed, low power consumption, stable 4. Precise cut for easy access to all buttons and ports, giving you smooth operation 5. Three-color backlight function to add game atmosphere 6. Bracket and pen tray function, easy to use 7. Easy to insert and remove 8. Tablets are not included Product Specifications: 1. Bluetooth standard scheme: 3.0 2. Effective operating distance: 10m 3. Modulation method: GFSK 4. Working voltage: 3.7-4.0V 5. Working current: less than 8mA 6. Standby current: less than 0.3mA 7. Sleep current: less than 50 microamps 8. Charging current: greater than 200mA 9. Standby time: more than 100 days 10. Charging time: 2-3 hours 11. Lithium battery capacity: 200mAh 12. Sustainable working hours: no less than 30 hours 13. Lithium battery life: 3 years 14. Button force: 80+-10g 15. Button life: 5 million clicks 16. Working temperature: -10-55 degrees Celsius 17. Charging interface: Type-C