Features: 1. Not only a protective case, built-in Bluetooth keyboard, more powerful 2. The keyboard and leather case can be separated design 3. Bluetooth chip, fast speed, low power consumption, stable 4. Precise cutting, easy access to all buttons and ports, providing you with smooth operation 5. Support, touchpad and pen tray function, easy to use 6. Easy to insert and remove 7. Tablets are not included Product specifications: 1. Bluetooth standard scheme: 3.0 2. Effective operating distance: 10m 3. Modulation method: GFSK 4. Working voltage: 3.0-4.2V 5. Working current: less than 2.5m - A 6. Standby current: less than 0.3m - A 7. Sleep current: less than 40 microampere 8. Charging current: more than 200m - A 9. Standby time: more than 100 days 10. Charging time: 3-4 hours 11. Lithium battery capacity: 200m - Ah 12. Sustainable working hours: 100 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