DIY E-Ink Magnetic Protective Case for iPhone 17 Pro Max Smart Photo Rear Projection Custom Case Instantly displays photos on the e-ink screen Back cover protector

NFC Quad-Color E-Ink Phone Case, exclusively compatible with iPhone 17 Pro Max 2025. Constructed with TPU + lens mount + NFC chip, featuring an embedded NFC chip that supports DIY customization for any image projection. How does the pattern change? It transmits data and power via NFC technology. Four-color e-ink phone case, passive NFC, smart personalized DIY, four-color e-ink phone case. Replaceable smart window—freely customize your case with any pattern you like. Precision cutouts for all ports, cameras, and speakers; enlarged ports accommodate most cables. Responsive ons with easy-to-press covers. The case consumes minimal power via NFC only when transmitting new images. After transmission, the e-ink display mode requires no power to maintain. By controlling positive and negative charges, ink capsule molecules are pushed to different positions. When the current stops, the ink capsule molecules lock into their current position. Therefore, the screen display requires no maintenance power, resulting in extremely low overall power consumption for the phone. After removing this case, it can still display the last projected screen content.