Logitech MK275 Wireless Keyboard and Mouse Combo for Windows DESCRIBTION:- - WIRELESS MOUSE AND KEYBOARD COMBO:Reliable 2.4GHz Wireless Connection. A tiny Logitech Nano-receiver connects both the keyboard and mouse using just one USB port - LONG BATTERY LIFE:Get up to 24 months of keyboard power and 12 months of mouse power without changing batteries - EIGHT HOT KEYS: Instantly access your movies, music, the Internet, e-mail, volume, play/pause and more - ALL-IN-ONE SETUP: Includes a full-size keyboard with quiet, low-profile keys plus a portable contoured mouse for comfortable control - SYSTEM COMPATIBILITY: :Plug and Play Simplicity for Windows PCs.Works right out of the box with Windows XP, Vista, Windows 7.