Two-in-one keyboard and mouse kit provides slim and cotemporary design perfect for any home office. Micro-sized nano receiver stores conveniently in mouse when on the go. Advanced long-range 2.4GHz RF technology gives you the reliability of a cord, but without the tangled mess. Wireless receiver controls keyboard and mouse. Internet hot keys, office hot keys and multi-media hot keys. Battery-indicator light for a quick keyboard battery strength reference. Nano receiver stores in bottom of mouse for easy transport. 1600 DPI advanced optical sensor. Two AAA batteries for keyboard (included). Two AAA batteries for mouse (included). System Requirements:. Microsoft Windows 2000, XP, Vista or 7. PC with a one GHz processor or higher. 512 MB of Ram. One USB port.