Ready to use straight from the box with no setup or installation required, the Logitech Black USB Optical Mouse simply plugs straight into your computer using its USB connector. It can be used comfortably in right or left hand, without impating on the impressive cursor control lent by the mouse's 800dpi sensitivity. Zoom in and out instantly with just a roll of the mouse wheel, while side to side scrolling means you can move the webpage horizontally and vertically.