The Pro Lite E2083HSD is a 19, 5′′ LED-backlit monitor with 1600x 900 resolution. It features 5msec response time & >5M: 1 Advanced Contrast Ratio assuring vibrant images & blur free Video. Analogue VGA & Digital DVI inputs ensure compatibility with the latest systems & associated graphics cards. The monitor is Energy Star qualified & VESA mount compatible. ACR Contrast Ratio is a measurement of the difference between the darkest black & the brightest white your monitor can display. Advanced Contrast Ratio is a feature that automatically adjusts contrast & brightness of the screen to assure perfect picture quality while watching films & playing games. LED-BACKLIT A typical CCFL LCD uses four backlight lamps. Using LED diodes considerably lowers the power consumption & reduces the CO2 emission into the environment making this LCD a true ECO-Friendly product. 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.