The 55" Nec E552 Second-generation, Commercial-grade Large-screen Lcd Display Offers Value-driven Digital Signage Capabilities With Impressive Professional Screen Performance. Featuring Rs-232c Control, This Display Makes Professional Display Management Easy, And An Upgraded B-did Panel Enables A 3-year Limited Warranty. Boasting An Impressive Full Hd Resolution With Three Hdmi Inputs, Integrated Usb Media Player And A Variety Of Display Settings, The E552 Delivers Stunning Visual Impact While Insuring High Static Contrast Ratio. Built-in Features Include An Analog/digital Tuner, Swivel Stand, Low-profile Stereo Speakers And Closed Captioning. The E552 Was Designed For Implementation In Educational Environments, Corporate Lobbies, Boardrooms And Small Conference Rooms, While Addressing Digital Signage Needs In Retail Stores, Waiting Rooms And Health Clubs.