Innovative SnapFrame Technology: The SnapFrame E-ink Phone Case offers a unique way to display your most cherished memories directly on your phone. With its cutting-edge NFC technology, this smart NFC e-ink phone case ensures your images remain displayed indefinitely, without any battery consumptionEffortless Image Customization and Refresh: Customize and refresh your phone case's display anytime, anywhere with the smart NFC app. Open the app, customize your photo with a simple "scan" action, and voila! Updating your phone's look is as easy as repeating these quick steps, making it the ultimate smart NFC app refresh mobile phone caseSafety and Energy Efficiency: Designed with safety and sustainability in mind, this NFC function smart phone case operates without a built-in battery, eliminating overheating concerns. Its energy-efficient E-ink display guarantees a long-lasting image retention, even if the phone or case is powered offCreative and Functional Design: Beyond its visual appeal, the Snap frame E-ink Phone Case is of functionality. It passes drop tests with flying colors, offers a precise opening design for easy access to all buttons and ports, and provides a non-slip grip, ensuring your device is both protected and stylishWide Compatibility and Easy Installation: Before ordering, simply confirm your phone model to ensure a perfect fit for this smart NFC e-ink phone case. Its classic design not only enhances the look of your device but also supports a wide range of applications, promising easy installation and a seamless user experienceProduct name: Snapframe E-Ink Phone CaseProduct color: Black/Grey/WhiteApplicable brands: IosProduct package includes:1 Pcs *Snapframe E-Ink Phone Case