The ProLite B2280WSD is a high specification 22 1680x1050 LED-backlit monitor with Height Adjustability and Screen Rotation allowing you to set the perfect position of the screen ensuring ergonomic posture and optimal viewing comfort. 5msec black-to-black response time and 5 000 000 : 1 Advanced Contrast Ratio make the B22080WSD ideal for Video Conferencing DTP and CAD as well as the usual text based applications. Analogue and DVI inputs ensure compatibility with the latest systems and associated graphics cards. The monitor is TCO and Energy Star Certified. LED-Backlit A typical CCFL LCD uses four backlight lamps. Using LED diodes considerably lowers the power consumption and reduces the CO2 emission into the environment making this LCD a true ECO-Friendly product. ACR Contrast Ratio is a measurement of the difference between the darkest black and the brightest white your monitor can display. Advanced Contrast Ratio is a feature that automatically adjusts contrast and brightness of the screen to assure perfect picture quality while watching films and playing games. VESA VESA mount compliance means you can easily mount your monitor to a wall. SPEAKERS This LED monitor is equipped with two high quality stereo speakers. Height Adjustable Stand A Height Adjustable Stand allows you to set the perfect position of the screen ensuring ergonomic posture and optimal viewing comfort which benefits not only your health but also productivity. Pivot Screen rotation means you can change the position of the screen from landscape into portrait. This feature can be very handy while working with long spreadsheets or texts.