A07B-AS Lambskin Pen Slot Touch Pad Backlight Bluetooth Keyboard Leather Tablet Case For iPad 9.7 2018&2017 / Pro 9.7 / Air 2(Blue) More iPhone Tempered Glass Volume (Max) usage time: about

Volume (Max) usage time: about 2

stable and not easy to fall off

the transmission speed is faster and more stable

android phones with OTG function

Weight: about 334 grams

A07B-AS Lambskin Pen Slot Touch Pad Backlight Bluetooth Keyboard Leather Tablet Case For iPad 9.7 2018&2017 / Pro 9.7 / Air 2(Blue) More iPhone Tempered Glass Volume (Max) usage time: about1. 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: 2. 5mA 6. Standby current: 0. 3mA 7. Sleep current: 40uA 8. Charging current: 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