Logitech Mouse M100 gives you just the basics for comfortable, reliable control of your computer. It~s built by Logitech~the mouse experts~and comes with the quality we~ve built into more than a billion mice. There~s no software to install. And since it~s corded, you can just plug the cable into a USB port and use it right away. The full-size, ambidextrous shape means your hand will rest comfortably, while high-definition optical tracking (1000 dpi) means you~ll get responsive, smooth cursor control for precise tracking and easy text selection.