Get on the ball with optical precision and comfort. Microsoft Optical Technology replaces old-fashioned gears and pins with this high-performance trackball. Enjoy thumb-controlled accuracy, advanced features, and total comfort in one affordable package.

Simply roll the wheel to move around in documents and Web pages—no more clicking the on-screen scroll bar.

Get more functionality from your mouse. Two extra buttons let you go Back and Forward in your Internet browser without clicking the toolbar. Or you can reassign them to a command or keystroke that you use more often, such as copy and paste.

Work in style and comfort. Designed by Microsoft ergonomics experts, the arched shape provides support for your hand in a natural, comfortable position.

Customize the mouse to work your way. IntelliPoint mouse software (included) enables you to reassign any button—including the wheel—to open a file or Web page, or to perform a command, such as Copy or Undo.

Experience accurate, finger-operated control and effortless navigation.

The rectangular Universal Serial Bus (USB) plug connects to a Windows- or Macintosh-based computer. The included IntelliType Pro keyboard software c.......

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