Customize Your Phone Case: The built-in E-ink screen allows you to change your phone's look anytime and anywhere via NFC, displaying any design you desire. Our self-developed app is easier and faster to use, with quick and stable connection. 4-Color E-Ink Screen: We’ve added an additional color to the E-ink screen for a richer and more colorful display. We've upgraded to the latest ink technology, offering more accurate and clearer display compared to other E-ink cases. No Battery, Supports Wireless Charging : The E-ink screen does not require any power to display images. It only uses a small amount of your phone's battery when switching images. Even if your phone runs out of power, the phone case image will remain unaffected. At the same time, it supports wireless charging. Built-In Kickstand: We’ve designed an adjustable aluminum kickstand at the camera cutout. It’s sturdy and durable, making it easy to watch videos. Shockproof and Anti-Fingerprint: The glass panel is made from frosted tempered glass, providing a better touch feel and resisting fingerprints. The full-wrap design offers all-around protection against drops. E Ink Phone Case