KSOPUERT Upgraded Smartphone Case with Ink Screen in 4 Colors, DIY Picture/Photo/Picture/Text, Compatible iPhone 16 Pro Max, NFC Transmission, Black

Working principle: use NFC and electronic ink screen technology, use the "Ink Show" app to edit the phone case and transfer it to the back. Achieve a quick and easy DIY long-term display. Please note that the device requires iOS 15 or above. Technology Upgrade The previous smart ink NFC phone case only has 3 colors of pigment - black, white and red. The pigments of our 4-colour ink screen are black, white, red and yellow, which has greatly improved the clarity and fineness of the photo display. Good points: The reason why you choose the ink screen as a display is because the display does not require continuous power supply, does not generate heat, is radiation-free and can be displayed for a long time. Wireless transmission is faster with NFC for ink screens. Inadequacies: Of course, the 4-color ink screen technology is more realistic and detailed than traditional 3-color technology. Nevertheless, we ask for your understanding of the limitations of the ink screen (for similar products that already exist or will be available in the future). Our ink screen can better display simple black and white images, but obviously does not come close to an LCD screen in colour, pixel number and sharpness. Application The Snapframe E-ink phone case can display digital images. The app offers images, texts, QR codes, daily reminders and everything you want to display on the screen. The "INK SHOW" app allows you to freely switch the desired language at the top right of the home screen. It already supports: English, Spanish, Portuguese, Japanese, Arabic and Korean. For more instructions and applications, please see the product code.