Microsoft(R) Wireless Notebook Optical Mouse 3000

The Wireless Notebook Optical Mouse goes wherever you do and works whenever you do. Gain precision accuracy with the latest in optical technology. The optical sensor replaces the old-fashioned mouse ball. Designed by ergonomic experts for comfort in either hand, you can get wireless freedom with longer battery life - many users average more than 3 months of battery life. Includes a snap-in receiver.