<b>Package includes: Logitech Cordless LX 300 Keyboard, Optical Mouse, RF receiver, USB to PS/2 adaptor, 4 AA batteries, CD and Quickstart Guide</b> The Logitech Cordless Desktop LX 300 helps you create a more comfortable, less cluttered desktop. With its low-profile keyframe and other ergonomic features, it sets a higher standard for comfort and style. Programmable extra keys and buttons lets you be more productive without changing the way you work. Premiere optical mouse technology for smooth, precise tracking on a wide range of surfaces 5-year limited hardware warranty