RK11A Backlight TPU Multi Color Light Bluetooth Keyboard Horizontal Flip Leather Tablet Case for iPad Pro 11 2020 / 2018 with Holder & Pen Slot(Red)

1. Bluetooth 3.0 standard interface2. Effective operating distance: 10 meters3. Modulation mode: GFSK4. Working voltage: 3.7DVC5. Working current: ﹤ 5mA6. Standby current: 1.0mA7. Sleep current: ﹤ 0.25mA8. Charging current: ﹥ 200mA9. Standby time: ﹥ 100 days10. Charging time: 3-4 hours11. Lithium battery capacity: 400mAh12. Continuous working time: 100 hours / 3-5 hours (when the light is on)13. Lithium battery life: 3 years14. Button force: 80g15. Key life: 5 million clicks16. Working temperature: -10 to 55 degrees Celsius17. Product size: 258x210x25mm