Green Lion Smart E-Ink Case 4" Custom Display for iPhone 17 Pro Max - Grey

The Green Lion Smart E-Ink Grey Case 4" Custom Display for iPhone 17 Pro Max enables users to create unlimited designs while maintaining their device's battery life. The case operates without batteries because it uses Passive NFC to power its functions. The system provides instant display changes through its quick refresh feature, which operates at 8 seconds and delivers 236 DPI resolution. The display shows your content in vibrant colors through its four available display colors, which include black, white, red, and yellow. Users can charge their devices through MagSafe technology without needing to take off their protective case.