BM13 Diamond Texture Detachable Bluetooth Keyboard Leather Tablet Case with Pen Slot & Triangular Back Support For Lenovo Pad Pro 11.5 inch 2021 TB-J716F / Tab P11 Pro 11.5 inch TB-J706F(Black White)

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 and pen slot function, easy to use 6. Easy to insert and remove 7. Tablets are not included Product specifications: 1. Bluetooth standard interface 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 microampere 8. Charging current: more than 200mA 9. Standby time: more than 100 days 10. Charging time: 2-3 hours 11. Lithium battery capacity: 200mAh 12. Sustainable working hours: not 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 port: Type-C interface