Feature Highlights: 1. No Battery Needed – Thanks to advanced passive NFC technology, this 7.5‑inch E‑ink screen works without any built‑in battery. No more worrying about battery life or replacements. 2. Wireless & Energy‑Saving – It uses passive near field communication for wireless power and data transfer. Just bring an NFC‑enabled smartphone or card reader close to refresh the display—no cables, no battery waste. 3. Sleek & Durable Build – Made with high‑quality ABS material, the screen is slim, lightweight, and designed to last. It meets strict quality standards for everyday reliability. 4. Easy Setup & Stable Performance – Installation is simple and tool‑free. The screen refreshes quickly and runs steadily using passive NFC wireless brushing technology—no complicated wiring or power sources needed. 5. Quick Refresh with NFC – Whenever you need to update what’s on the screen, just hold an NFC‑capable device near it. The display gets powered wirelessly and refreshes in seconds. Product Details: This 7.5‑inch E‑ink display uses passive NFC technology to operate completely without a battery. It’s powered wirelessly when an NFC smartphone or card reader is brought close, updating the content in about 5 seconds. The high‑contrast black‑and‑white E‑ink screen is easy on the eyes, offers a wide viewing angle, and is housed in a slim, sturdy ABS case. Setup is straightforward—no tools or wiring required. Ideal for digital labels, smart signage, or any low‑power display need where convenience and energy efficiency matter. Specifications: - Item Type: E‑ink Screen - Power Supply: Wireless (via NFC) - Gray Level: 2 - Display Colors: Black & White - Refresh Time: ~5 seconds (excluding data transmission) - Dot Pitch: 0.205 × 0.204 - Display Size: Approx. 163.2 × 97.92 mm / 6.4 × 3.9 in - Resolution: 800 × 480 - Viewing Angle: >170° - Included: 1 × E‑ink Display