AVerMedia's AVerKey 300 delivers superior video images from your computer to a television, allowing you to display your carefully prepared presentations on the big screen. Its 7-level flicker-free selections ensure your displayed images are always sharp, vibrant and crystal clear. Plug and play compatible, AVerKey 300 installs in minutes. It's a fully external unit and there are no software drivers to load. ??AVerKey 300 includes exclusive features. Similar to a Laser Pointer, the AVerMedia Pointer is a 4x4 pixel square that lets you direct your views' attention to key areas on the screen. With AVerMedia Spylight, you can highlight certain areas of your screen by darkening unwanted areas (both horizontally and vertically). AVerMedia Spot lets you focus on certain areas by darkening external areas and by creating a colored border within your area of interest. Exclusive Area Zoom divides your screen into nine parts and lets you easily focus on individual sections at a time.