Waveshare 2.7 inch Passive NFC-Powered E-Paper Module, No Battery Wireless Power Supply and Data Transfer

New passive NFC technology, no battery required, no more battery life issues\nPassive NFC solution, no battery required, no messy wiring\nTo update the display content, use a smartphone with NFC function, or an NFC reader, close to the e-paper, it's done in seconds\nUpdated with smartphone, comes with Android APP\nSuitable for price tags, asset/equipment tags, shelf-edge labels, conference name badges, etc.\nNo need for backlight, power off can keep the display content on the last screen for a long time\nIt does not contain a power supply such as a battery itself, which is suitable for application environments with limited power supply\nThe displayed content can be customized and controlled by the user at any time via the smartphone, which is convenient and flexible\nPOWER SUPPLY: Wireless\nDISPLAY COLOR: Black / White\nDOT PITCH: 0.217 x 0.217 mm\nRESOLUTION: 264 x 176 pixels\nVIEWING ANGLE: Greater than 170°\nREFRESH TIME: 6s (data transfer time not included)\nDISPLAY SIZE: 57.29 x 38.19 mm\nOUTER DIMENSIONS: 84.5 x 47.50 mm\ncolor: Blue\nMaterial: PCB\nPackage Contents:\n1 x 2.7 inch NFC-Powered E-Paper Module\nOnly the above package content, other products are not included.\nNote: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.