A11BS 2020 Ultra-thin ABS Detachable Bluetooth Keyboard Tablet Case for iPad Pro 11 2022 / 2021 / Air4 / Air5, with Backlight & Pen Slot & Holder (Black) Tag-LCD Related Parts 5mm / 4mm / 4

5mm / 4mm / 4

5: After connecting the camera to the computer

automatically stop charging when there is danger of overcharging or overvoltage

and works as power bank

built-in CP2102+SP485 chip

A11BS 2020 Ultra-thin ABS Detachable Bluetooth Keyboard Tablet Case for iPad Pro 11 2022 / 2021 / Air4 / Air5, with Backlight & Pen Slot & Holder (Black) Tag-LCD Related Parts 5mm / 4mm / 41. Standard 3. 0 Bluetooth solution 2. Effective distance 10 meters 3. Standby time: 100 days 4. Continuous working time: 70 hours 5. Charging time: 4 5 hours 6. Lithium battery capacity: 200mha 7. Lithium battery life: 3 years 8. Key life: 500 million times