NFC Memory Keyring 1.54 Inch Three Color E-Paper Display Screen Image Wireless Transmission Keychain

No backlight required, e-Paper keeps displaying the last content for a long time without power. It does not contain a power supply such as the battery itself, which is suitable for application environments with a limited power supply. You can modify the display content by smartphone. It is suitable to use as equipment labels, shelf labels, information storage, etc. Equipped with ABS plastic shell with good strength and toughness. Overview: This is an NFC-powered 1.54inch e-Paper Module, with 200 x 200 resolution. Users can transmit data from a smartphone or NFC reader to e-Paper and refresh by NFC.

Suitable for mobile phone key ornaments, business cards, decorations, and other applications.

Specifications:

POWER SUPPLY: Wireless

GREY SCALE: 2

DISPLAY COLOR: Red / Black / White

REFRESH TIME: 8s (data transfer time is not included)

DOT PITCH: 0.138 x 0.138

DISPLAY SIZE: 27.60mm x 27.60mm

RESOLUTION: 200x200

OUTLINE DIMENSION: 47.84mm x 41.28mm

VIEWING ANGLE: 170°

Colour: White

Material: Metal

Package Contents: 1 * NFC Memory Keyring Only the above package content, other products are not included. Note: 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 +/- 1-3cm.