75inch 20points IR Interactive Touchscreen for Education Classroom

75inch 20points IR Interactive Touchscreen for Education Classroom  Product Description-LED backlight LCD Panel, 4K ultra HD;-Simutaneous 10 points of touch, allow immeidate access to APP and software;-4mm toughened glass surface,anti glare and anti-reflective;-An array of inputs ports including HDMI, USB 3.0;-Built in mini PC option;-Compatible with major operating systems from Windows to Mac, Linux;-Switch Input Source by Touch;-With Eshare and Writing Software option;  Certifications Display Parameters Panel Size75inchLCD typeLEDResolution3840x2160(pixels)Brightness450cdContrast Ratio1200:1(typ.)Response Time8msPixel Size0.744mmx0.744mmFrame Rate60HzViewing Angle178°,178°Life Time30,000 hrsColor Saturation( x% NTSC )65%Visible Area1649.664x972.936mmColor1.07B(10bit)Bare Dimension(mm)1736.8x1055.4x111 mmPacking Dimension(mm)TBDN.W./G.W.65Kgs/82KgsOperation Voltage100V-240V AC,50/60HzSolutionMT9666CPUCA55 1.2-1.53GHzGPUG52 2EE MC1@550MHzRAM2GB DDR3ROM8GBSystemAndriod 5.0Maximum Power