We sell software packages which are designed to run on Microsft Windows Vista, Windows 7 etc and the screen resolution of the projector display for presentations needs to be the same as on most modern PC screens and lapdop displays. I looked around and this one appeared to fit the bill at a reasonable price (most cheaper projectors don't have this level of resolution). Having used it a number of times now it has behaved faultlessley, with a clear, bright image, easy to set up, easy to configure. Recommended 100% as we are very happy with it. It comes with a case which is good, however fitting the cables and remote into the pocket is a squeeze but that is a minor detail.