The 55" NEC E558, a direct-lit, commercial-grade display, is ideal for education, corporate and other digital signage applications. Compared to previous generation displays, this model's 4K UHD resolution and LED direct backlighting allows for higher visual acuity, reduced power consumption and localized dimming that gives a higher dynamic contrast ratio. The E558 has an integrated ATSC/NTSC tuner and dual 10W speakers allow users to enjoy high-definition broadcast capabilities. This display also features a USB player in which video, audio or JPEG picture files can be loaded and played in sequence for signage purposes.