Quick Overview The E-Ink Keychain is a sleek and modern accessory that combines technology with sentimentality. Featuring a 1.54-inch three-color e-ink display (red, black, and white), this keychain allows you to easily update and display your favorite photos or messages wirelessly through NFC. Its compact design, crafted from high-quality aluminum alloy and PC materials, ensures durability while maintaining a lightweight feel. Compatible with all NFC-enabled phones (models released after 2018), this keychain is powered wirelessly through NFC, offering a hassle-free experience. Whether as a unique personal keepsake or a thoughtful gift, the E-Ink Keychain is perfect for cherishing memories on the go.