4 Color Eink Screen Smart Phone Case for Iphone 13 14 15 Pro Max NFC Fuction Back Cover Diy Refesh Display Battery Free

Specifications:

Screen Size: 3.7 inches
Screen Resolution: 240(H)*416(V)px
Color color system: 4 colors
App: INKZONE (for Apple Store)

How to use:

1. Open NFC function.
2. Download the APP "INKZONE". (for Apple Store)
3. Install the phone case on the phone.
4. Log in and register for APP use.
5. Open the INKZONE APP home page and click “My Devices Connect the phone case.
6. Click “Start Your Creation", and create your theme.
7. After creating the picture, click the "Use” button to upload it synchronously phone case.

Description

NFC technology is used to transmit display content to the ink screen of the mobile phone case with low power consumption. After the transmission is completed, no energy is consumed. Even if the mobile phone is turned off or the mobile phone case is removed, the image can be displayed permanently
Search the APP "INKZONE", download it to your mobile phone, open the APP, and you can freely edit and transfer pictures and text. The APP is easy to use
If you have creative inspiration or are proficient in using AI drawing apps, it will ignite your desire to showcase your work
It has tough PC back and flexible soft TPU bumper resisting daily wear and tear. With built-in 360° all-around powerful impact dispersion airbags on 4 corners, Protects the mobile phone from falling, collision, and face-up or face-down injuries
4-Color Ink Screen: The image will turn into four colors ink screen after conversion
The precise opening design allows easy access to all buttons, speakers and charger slots. Providing a delicate touch and non-slip grip