Features: This ink screen requires no backlight and can retain the display content on the last screen for an extended period when powered off. Power consumption is very low; it only consumes power during updates. Built-in level conversion chip, compatible with 3.3V and 5V level interfaces. The electronic ink screen uses "microcapsule electrophoresis display" technology for image display, and its working principle is to suspend particles in liquid. Electronic ink screens can display images clearly in ambient light such as lighting and natural light, without the need for backlighting, with a viewing angle of nearly 180 degrees. Usage scenario: suitable for price tags in shopping malls, asset equipment labels, electronic shelf labels, conference nameplates, etc. Specifications: Item: 2.66 inch E-Ink Display Screen Module Resolution: 360x184 Viewing Angle: approx. 180° Display Color: red, yellow, black, and white Grayscale Level: 2 Communication Interface: SPI Display Panel: e-paper Type: 2.66-inch E-Ink Screen Only / 2.66-inch E-Ink Screen with Module Size: As shown in the pictures Note: Due to lighting effects and shooting angles, there will be some tolerances in the product, please understand. Please allow 0-1cm error due to manual measurement. Package includes: 1 x 2.66in E-Ink ePaper Screen