Description: Product Name: X11 NFC ink screen phone case Case Material: TPU Color:Black,White,Grey Specifications: SAFE TO USE AND NON-CONSUMING: No built-in battery, no need to worry about overheating, no need to worry about damage, just use NFC transmission through the APP, even if the phone is turned off or the case is removed, the image will remain displayed for a long time. CUTTING-EDGE TECHNOLOGY: The projected images can display black, white, yellow and red colors, but through some clever dithering techniques and varying levels of color intensity, it simulates full-color effects. INFINITE CREATIVE POSSIBILITIES: If you have creative inspiration or are proficient in using AI drawing apps, it will ignite your desire to showcase your work. WIDE RANGE OF APPLICATIONS: This product has a wide range of applications, and you can simply operate it on the app without the need to send information to others, so you don't have to worry about privacy leaks. EASY TO USE: The app is easy to use, yet powerful enough to allow you to perform magic on the go. It's like constantly changing to a new phone case PERFECT FIT: This case passes drop test, and the precise opening design allows easy access to all buttons, speakers and charger slots. Provides a delicate touch and non-slip grip. Package: 1pcs Smart Photo Rear Projection DIY phone Case