Benq 9H.F3TTK.RE1 - RP553K black, Size: 55", Backlight: LED, Resolution: 3840x2160, Active area: 1225.2mm X 696.7mm, Brightness: 350 nits, Contrast: 1200:1, Response time: 6ms (typ.), Viewing angle (H/V CR=10): 178/178, Color gamut: 65%, Touch: IR 10 points, Protection glass: Yes (4mm), Input connector: D-sub, HDMI, USB, Internal speaker: 20W x 2, RS232 input, RJ45, Remote control. Warranty - 3yr onsite exchange