Open-Box: Flawless Display. Cosmetic wear, Dents on back of the unit. Complete set, tested and fully operational. * ---LG Digital Signage Display ---86" 3840 x 2160 4K LCD Display ---Brightness - 330 cd/m2 ---Aspect Ratio - 16:9 ---Contrast Ratio - 1200:1 ---Dynamic Contrast Ratio - 1,000,000:1 ---Response Time - 5 ms ---Refresh Rate - 120 Hz ---HDR Compatibility - HDR10, Hybrid Log Gamma ---TV Tuner - Yes, ATSC, Clear QAM ---Display Orientation - Landscape ---Built-in Speakers - Yes, 2 x 10 W ---Wall Mounting - 600 x 400 mm.