Apple Wireless Mighty Mouse

Features:

    * Bluetooth wireless capability
    * Laser tracking engine provides
      20x surface sensitivity
    * 360-degree clickable Scroll Ball
    * Touch-sensitive top shell
    * Force-sensing side buttons

Specifications:

    * Power Source: AA Battery (included)
    * Cables: None
    * Scroll Ball: 360-degree Scroll Ball with
      adjustable scrolling
    * Buttons: Up to four programmable buttons:
      full-body button with touch-sensitive
      technology beneath for left-, right-
      and Scroll Ball clicking. Force-sensing side buttons.
    * Tracking: Laser
    * System Requirements: Mac OS X v10.4.6 or later