55" Class (55.6� diagonal) Professional LCD Monitor - Brilliant Ultra High Definition (3840 x 2160) resolution with 500 cd/m2 Brightness and 5000:1 Contrast Ratio. Built-in Media Player and 10W per Channel Stereo Audio System. Landscape, Portrait, Face-up, Face-Down, and Tilt Operation. Engineered for 24/7 Commercial Use. 3-Year  Limited Warranty