S253 E-paper signage utilizes E Ink Gallery Plus color electronic paper display technology with cyan, magenta, yellow, and white electronic ink particles. Through voltage control, it dynamically combines and mixes particles to achieve 60,000 color gamut. 25.3” display has 16:9 aspect ratio based on a new color E-paper drive waveform architecture to improve the contrast by 40%, making the image more attractive and vivid and providing a more visually impactful color poster . The signage interconnects wirelessly to WiFi or 4G, with a built-in rechargeable lithium battery. It is mainly targeted for indoor commercial signages in retail malls, restaurants and for public traffic information displays in subways and airports.