Keefrash Upgraded Smart Ink Phone Case – 4.1" 4-Color E Ink Screen, 556×800 Resolution, NFC Digital Picture Phone Case, DIY Photo Transfer, Smart Ink Case Compatible with iPhone 15 pro max – Black

Additional Details from the Manufacturer

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More features

• 【Upgraded 4.1" HD 4-Color E Ink Screen】The e ink phone case features a 4.1-inch HD E-Ink display with 556*800 resolution, offering clear and vibrant visuals in four colors: black, white, red, and yellow. Compared to the 3-color ink screen case, the 4-color ink screen has richer colors and a more realistic display, making it the perfect smart ink case for your iPhone
• 【NFC Zero-Power Customization & E-Ink Technology】This digital phone case leverages NFC technology for 10-second wireless transfers via smartphone, no Bluetooth pairing or WiFi required. Once uploaded, designs remain permanently visible (0% energy consumption) even when the case is detached or the phone is powered off. This makes your e-ink phone case more personalized, allowing you to showcase your mood and creativity at any time with your ink screen phone case
• 【Instant Customization & Privacy】Daily design switching is made easy with the smart phone case app, no need for multiple cases. Perfect for daily mood expressions, event promotions, or expressing yourself. No data sharing required, ensuring privacy for sensitive reminders or QR codes. Your digital ink phone case is the perfect way to show off your unique style
• 【Durable & Safe Design】Crafted with shock-absorbing TPU and 0.75mm raised edges, offering 360° drop protection. The precise opening design ensures easy operation of all buttons, speakers, and charging ports. Slim profile adds <12mm thickness – protects without bulk. Switch seamlessly between custom art gallery and professional info display modes with your eink phone case
• 【APP is easy to use】Simply place the NFC phone case on your phone, scan the QR code in the user manual to download and open the app. After connecting your phone case, you can freely edit pictures or text on the app to create your own exclusive design. This is more than just a case; it's a bold expression of your individual style with your e ink case