1.54inch Passive NFC-Powered e-Paper 200 x 200, Red/Yellow/Black/White 4-Color Displaying, No Battery, Wireless Powering & Data Transfer, No Messy Wiring, Silver Metal Border

This is an NFC-powered module with a 1.54 inch e-Paper display, with a resolution of 200 x 200. It supports users to wirelessly transmit image information through an NFC enabled card readers or mobile phones, and display the information on the e-Paper display.
Wireless NFC-Powered Display Refreshing. Passive NFC solution, No Battery Required, No messy wiring. It does not contain a power supply such as a battery, suitable for applications where power supply is limited.
No backlight required, e-Paper can keep displaying the last content for a long time without power. The content displayed can be customized and controlled at any time by the user using a smartphone, convenient and flexible. Suitable for equipment labels, shelf labels, information storage, etc.
Provides a supporting Android APP to help users edit and manage the display content of the e-Paper display.
A born hanging ornament: Features corner hang hole with included lanyard. Suitable for mobile phone keychains, business cards, decorations, and other applications. Equipped with ABS plastic shell with good strength and toughness.
How it works--Wireless Powering & Data Transfer: To refresh the display content, use a smart phone with NFC function, or an NFC reader, close to the e-Paper, it'll be done in a few seconds.