22" five-point multi-touch monitor The Pro Lite T2253MTS is based on the latest optical touch sensor technology & fully Windows 8 compatible. It lets you browse the web, email & draw while working on multiple screens, docking or typing on the on-screen keyboard. You can scroll & rotate pictures, draw, zoom in & out using certain tap, flick, grab & pincer gestures. HDMI, DVI & Analogue inputs are available for flexible connectivity. Ready for the emerging business & consumer software packages. Multi-Touch The multi-touch functionality is supported under Windows 7/8 only. 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. 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. HDMI HDMI stands for High-Definition Multimedia Interface. Much smaller & more convenient than DVI, HDMI also has the significant advantage over DVI that it supports audio as well as video signals. FULL HD With true 1920 x 1080p resolution your monitor is ready to display high definition images. This means you can accommodate more information on your screen; e.g. 60% more in comparison to a 1280 x 1024 monitor. Over Drive ON / OFF When very fast graphics are displayed your monitor can sometimes get blurry. Turning on the Over Drive feature will eliminate that.