Product Description and Features – This desktop set combines a spill-resistant keyboard and optical mouse to deliver all the features you need and more with Microsoft quality and reliability., and a comfortable ambidextrous mouse. The Wired Desktop 600 features a keyboard with quiet, responsive thin-profile keys as well as a media center with hot keys to control the most-used media activities. The included Optical Mouse is designed for comfort with either hand and uses optical technology for smooth, precise control. In good working order, compete with Product User Guide//Manual. Note – some keyboard lettering/graphics have faded/worn out.