📲 Power up your display game—wireless, battery-free, and refreshingly fast!
The Coolwell 4.2-inch NFC-Powered e-Paper display leverages innovative passive NFC technology to deliver wireless power and data transfer without batteries. Featuring a sharp 400×300 dpi black-and-white e-ink screen, it offers fast, stable refresh rates controlled via a user-friendly Android app. Ideal for professional environments needing dynamic, battery-free labeling solutions.
| Included components | 4.2inch NFC-Powered e-Paper, Double-sided foam tape |
| Print media | Labels |
| Display type | e-Paper |
| Compatible devices | Smartphones |
| Maximum colour print resolution | 400×300 dpi |
| Sheet size | A4 [NA] |
| Maximum black and white print resolution | 400 dpi |
| Colour depth | 1 bpp |
| Dual-sided printing | Yes |
| Package Dimensions | 15.75 x 11.18 x 4.83 cm; 60 g |
| Item model number | NFC-Powered e-Ink |
| Manufacturer | Waveshare |
| Standing screen display size | 4.2 Inches |
| Processor Count | 1 |
| Connectivity Type | NFC |
| Number of USB 2.0 Ports | 2 |
| Operating System | Android |
| Are Batteries Included | No |
| Item Weight | 60 g |
| Guaranteed software updates until | unknown |
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