1. The touchpad is only compatible with ios 13 and above, please upgrade your system version 2. Different sizes have different keyboard layouts, may be different from the pictures 3. This keyboard is compatible with ipad Pro 11 inch 2020 & 2018? ipad Air 4 2020,but the lens hole of this keyboard is made for ipad pro 11 inch 2020, so when it is used in ipad Air 4 , the lens hole will be slightly larger, but it will not affect the use of the camera.If you have any questions, please feel free to consult us.thank you!...