E-ink phone case for iPhone 17

Core function: Integrates NFC (Near Field Communication) and E-Ink (Electronic Ink Display) technology.
Display characteristics: E-ink screens have advantages such as low power consumption, eye protection, and visibility in sunlight, making them suitable for displaying static or low-frequency updated information (such as notifications, QR codes, personalized graphics, etc.).
Interaction method: Through NFC function, it may support quick pairing, information exchange, or triggering specific operations with mobile phones or other devices.
Product positioning: As a trendy smart accessory, it adds a constantly lit, low-power secondary screen to mobile phones, enhancing practicality and personalized experience.