Screen Phone Case Classic White Suitable For Phone Protection Ink Display Image Phone Case Features: [New Technology Application] Using NFC technology, the display content is transmitted to the ink screen of the mobile phone case in a low-power way. After the transmission is completed, no energy is consumed. The image can be displayed permanently even if the phone is turned off or the case is removed. [Easy to use APP] Search the APP "Ink Show", download it to your mobile phone, open the APP, and you can edit and transfer pictures and text. The APP is very to use. The device requires IOS15 or above. [Advantages] The why I chose Ink Screen as the display is because its display does not require continuous power supply, does not heat, has , and can be displayed for a long time. Using NFC for Ink Screen wireless transmission is faster. [Disadvantages] However, we hope you can understand the shortcomings of the ink screen (similar products that already exist or will be available in the future). The ink screen we use is a three-color screen of black, white and red, which can better display pictures, . , it cannot be compared with the color, and of LCD screens. If you see some ink screens showing the same picture as LCD screens, this is incorrect. Classic AppearancePlease choose the correct model for your phone. The phone case is easy to disassemble and , with excellent materials and accurate dimensions. Product Description: Package list 1Mobile phone case