The HP Scrolling Optical Mouse ergonomic design and advanced scrolling and zooming capabilities offer better comfort, faster navigation and more efficiency. Whether you are working on large spreadsheets, documents, or designs, the HP Scrolling Optical Mouse provides the following benefits: quicker and smoother scroll through screens of information, immediate zooming on data without having to action scrollbars, menus or buttons; full functionality on supporting applications, including Microsoft Office. You can easily configure the scrolling wheel to take full advantage of the functionality provided by an increasing number of applications or simply use it as a third button.