Thanks to this all-in-one device, your 300dpi scanner lies at your fingertips all day long! Just press the scan button on the side of the mouse, swipe it in any direction on a paper document and watch text and images appear instantaneously on your computer screen. It's that simple. When you're not scanning, it works just as a regular mouse. It looks great, slides fluidly on any surface and is very lightweight. The best of both worlds!