The product is NFC Refesh Eink Screen, no battery is needed, only need to connect the APP, you can choose the pattern you want to DIY display on the phone case. It is very simple and easy to use.
Currently the phone case display screen, only support "black, white, red" three colors, please try to choose these three colors composed of pictures to use. In order to get the most idealized effect.
How to Use:
Install the phone case on your device.
Activate your phone's NFC feature and download the "INK SHOW" APP.
Choose your preferred image and project it onto the screen using the APP.
Once the projection is complete, your setup is done.
