3018 Detachable Bluetooth 3.0 Aluminum Alloy Keyboard + Imitation Cloth Texture Leather Tablet Case for iPad Air / Air 2 / iPad Pro 9.7 inch, with Sleep / Water Repellent Function(Blue) Tag-Video Recorder Kit 4) Soft internal layer to

4) Soft internal layer to protect the LCD screen from scratches and bumps

General Compatible with Huawei:  Enjoy 20 Plus 5G

digital clock design

General Compatible with Samsung:  Galaxy Book 10

3018 Detachable Bluetooth 3.0 Aluminum Alloy Keyboard + Imitation Cloth Texture Leather Tablet Case for iPad Air / Air 2 / iPad Pro 9.7 inch, with Sleep / Water Repellent Function(Blue) Tag-Video Recorder Kit 4) Soft internal layer to1. Bluetooth version 3. 0 2. Effective distance within 10m 3. Lithium battery capacity: 250mAh 4. Charging time is 2 3 hours 5. 100 hours of sustainable working hours 6. Standby for 100 days 7. Working voltage: 3. 0 4. 2V 8. Working current: <2. 5mA 9. Standby current: <0. 3mA 10. Sleep current: <40uA 11. Charging current: >200mA 12. 5 million button click life