OP11-A Lambskin Texture Ultra-thin Bluetooth Keyboard Leather Case with Touchpad For OPPO Pad 11 inch 1. Bluetooth 3.0 standard interface 2. Effective operating distance: 10 meters 3. Modulation method: GFSK 4. Working voltage: 3.0-4.2V 5. Working current: about 2.5mA 6. Standby current: about 0.3mA 7. Sleep current: about 40uA 8. Charging current: about 200mA 9. Standby time: about 100 days 10. Charging time: 3-4 hours 11. Lithium battery capacity: 200mAh 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 17. Keyboard with touchpad Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.