1.7.5" NFC-Powered e-Paper:<br> Adopts novel passive NFC technology<br> No battery required, no more battery life trouble<br> 2.Wireless NFC-Powered Display Refreshing<br> 3.Passive NFC solution, No Battery Required, No messy wiring, stable operation<br> 4. How it works<br> To refresh the display content<br> use a smart phone with NFC function, or an NFC reader<br> close to the e-Paper for both wireless powering and data transfer<br> Refreshing Example<br> Refreshed by ST25R3911B NFC Board<br> Application examples<br> Suitable for price Tags, asset/equipment Tags, shelf labels, conference name tags...<br> Specifications: <br> Power supply : Wireless<br> Grey scale: 2<br> Display color:Black / White <br> Refresh time :5s (data transfer time is not included)<br> Dot pitch:0.205×0.204 <br> Display size:163.2mm×97.92mm<br> Resolution:800×480<br> Outline dimension :195.84mm×137.68mm<br> Viewing angle :>170°<br> Package Content<br> 7.5inch NFC-Powered e-Paper x1<br>