E-ink Screen Phone Case Unlimited Screen Projection Personalized Phone Cover Battery Free New Designer Luxury Phone CaseHow to Use: Install the phone case on your device. Activate your phone's NFC feature and download the "INKZONE" APP. Choose your preferred image and project it onto the screen using the APP. Once the projection is complete, your setup is done. Product Information: Color: black, gray, whitebluepink Applicable model: Apple Material: tpu Color classification: Black Popular elements: Mirror Style: Two in one Style: European and American Process: Image Non