Model - Benq RM5502K, Technology - 4K UHD Education Interactive Flat Panel Display, Display Size - 55 inch, Resolution - 3840 x 2160, Anti-Glare - Yes, Panel Bit - 10 bit, Display Orientation - Landscape, Brightness - 350nits, Number of Touch - 20 Point Multi-touch (Max), Touch Interface - 1 x USB type B, Light Source - DLED, Light Life - 30,000 hours, Color Gamut - 65%, Contrast Ratio - 1200:1, Response Time - 9ms, Viewing Angel - 178 degree (H & V), Tempared Glass - 4mm, Tempered Glass, Speaker (Built-in) - 20Watt x 2, VGA Input - 1 x VGA, HDMI Input - 4 x HDMI, Audio In - 1 x 3.5mm Line In, Audio Out - 1 x 3.5mm Line Out, Power Switch - 1 x Power Switch, Power (Voltage) - 100V-240V, 50/60Hz, Power (Watt) - 98W, Power (AC) Input - 1 x Power (AC) Input, OS Supported - Windows 7, 8, 10, Vista, XP, Linux, Mac, Android, Chrome, Dimension - 1301.6 x 842.9 x 130.2mm, Others - Resolution (Points Area Function): 32,767 x 32,767, 1 x 3.5mm MIC, Availability - 45 Days, Warranty - 3 Year