Feature Highlights: 1. Battery-Free Operation – Utilizing advanced passive near-field communication (NFC) technology, this 7.5‑inch E‑ink screen requires no built‑in battery, eliminating concerns over battery life and power consumption. 2. Wireless & Eco‑Friendly – Powered by passive NFC wireless transmission, the screen operates without batteries or cumbersome wiring, offering an energy‑saving and environmentally friendly solution. 3. Sleek & Durable Build – Crafted from high‑quality ABS material, the housing is slim, lightweight, and designed to meet strict quality standards for long‑term reliability. 4. Easy Setup & Stable Performance – Simple tool‑free installation and stable passive NFC wireless refresh technology ensure consistent operation with minimal maintenance. 5. Smart Compatibility – Works with NFC‑enabled smartphones or card readers to wirelessly power and update the display content whenever a refresh is needed. Product Details: This 7.5‑inch E‑ink screen integrates passive near‑field communication technology for completely wireless power and data refreshing. It requires no internal battery, reducing environmental impact and eliminating battery‑replacement hassles. The high‑contrast electronic paper display ensures clear readability even in bright light, with a wide viewing angle and low refresh power consumption. Ideal for digital labels, smart signage, and information displays, it supports seamless content updates via NFC‑enabled devices. Specifications: - Item Type: E‑ink Screen - Power Supply: Wireless (Passive NFC) - Gray Level: 2 - Display Colors: Black & White - Refresh Time: 5s (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