LG 55UR640S 55" 4K UHD TV Signage Display (55UR640S) - Resolution: 4K 3840 x 2160 Direct LED, Contrast Ratio: 1200:1, Response Time: 14ms, Brightness: 400nits, Wi-Fi, 2 x 10W Speakers, Connectivity, Side: 3 x HDMI 2.0, Headphone Out, Rear: USB 2.0, 2 x RF In, Digital Audio Out (Optical), External Speaker Out, RJ45 (LAN), Wall Mountable: VESA (300 x 300mm), LG webOS 6.0. TV License Required for Purchase