The Logitech® Cordless Desktop® MX 3100 is a high-performance keyboard and mouse combination that redefines expectations. It´s the only cordless desktop that includes the award-winning MX 1000 Laser Cordless Mouse the world´s first laser mouse and an advanced cordless keyboard. Navigation is more efficient when both hands work together. With sophisticated navigation controls on both the keyboard and the mouse, the Cordless Desktop MX 3100 makes using your computer more convenient, more efficient, and more comfortable. With the ability to scroll vertically and pan horizontally using either hand, tasks such as navigating spreadsheets or editing digital photographs are easier than ever. There´s even a “snap back” feature on the keyboard that instantly returns a document to its starting magnification.