RK11 Cloth Texture Detachable Magnetic Bluetooth Keyboard Horizontal Flip Leather Tablet Case for iPad Pro 11 2020 / 2018 with Holder & Pen Slot(Black)

1. Bluetooth 3.0 standard interface2. Effective operating distance: 10 meters3. Modulation mode: GFSK4. Working voltage: 3.0-4.2V5. Working current: less than 2.5mA6. Standby current: less than 0.3mA7. Product size: 25.8x21x2.5cm8. Charging current: more than 200mA9. Standby time: more than 100 days10. Charging time: 3-4 hours11. Lithium battery capacity: 200mah / 400mAh (backlit)12. Sustainable working time: 100 hours / 3-5 hours (when the light is turned on)13. Lithium battery life: 3 years14. Button force: 80g15. Key life: 5 million clicks16. Working temperature: -10 to 55 degrees Celsius17. Product material: leather case with built-in pen slot, ABS plastic keyboard, keyboard with seven-color light (only backlight models)