This desktop set combines a spill-resistant keyboard and optical mouse to deliver all the features you needand morewith Microsoft quality and reliability. Enjoy plug-and-play setup Windows Vista integration Quiet Touch keys with quick access to media controls and calculator and a comfortable ambidextrous mouse. Media Center Four hot keys let you control the most-used media activities (play/pause volume up volume down and mute). Quiet-touch Keys Quiet responsive thin-profile keys. Calculator Hot Key With the touch of the button you can quickly access the Calculator. Spill-Resistant Design Enjoy a drink while you workthis keyboard is designed to withstand an accidental spill. Windows Start Button Press to launch your Start menu and search your PC or the Web if you have Windows Vista installed. Plug and Play No software needed. Just connect the keyboard to your PC and go! Comfort for Either Hand Use your mouse with your left or right handambidextrous design makes it comfortable either way. Optical Technology Navigate with better speed accuracy and reliabilitythe optical sensor tracks movement on nearly any surface without the hassle of clogged mouse parts. Scroll Wheel Move through your documents quickly without having to click on the on-screen scroll bar.