4.2-inch wireless NFC-powered e-paper/e-ink screen module

4.2-inch wireless NFC-powered e-paper/e-ink screen module Description

4.2-inch Wireless NFC-Powered E-Paper E-Ink Screen Module Description
1. 4.2-inch passive NFC e-paper. Uses new passive NFC technology for wireless power and data transfer. No battery required, no battery life issues, energy-saving. App included, easy to use. Protective ABS housing, beautiful and lightweight.
2. Wireless NFC display refresh. No annoying wiring, stable operation, fast refresh.
3. How it works: To refresh the display content, use a smartphone with NFC capability or an NFC reader and hold it against the e-paper to wirelessly power it and transfer data.
4. Supported Smartphones: Most Android phones with NFC functionality are supported. Some tested and confirmed devices are listed above (including, but not limited to).
5. Application examples: Suitable for price tags, equipment/device labels, shelf labels, conference name badges, etc.
Specifications:
Power supply: Wireless
Grayscale: 2
Display color: Black/White
Update time: 4 s (data transmission time not included)
Pixel spacing: 0.212 x 0.212
Display size: 84.8 mm x 63.6 mm
Resolution: 400 x 300
Outline size: 105.1 mm x 94.1 mm
Viewing angle: 170
Material: ABS
Color: White
Package Contents:
1 x 4.2-inch passive NFC-enabled e-paper
Only the above package contents, other products are not included.
Note: Light and different displays may cause the color of the item in the picture to be slightly different from the actual product. The allowable measurement error is +/- 1-3 cm.
[OnBuy.com]