Other mouse makers have been working on a cordless optical mouse but all ran into the same problem: powering the mouse.

Until now, however, cordless mice have usually made do with an infra red link to feed mouse movements and button clicks to the PC.

If you're set on getting a cordless mouse Logitech's contender must be seriously considered.

Logitech has just introduced another cordless optical mouse, the Mx700 ($59.95).

Other cordless mice typically use infrared signals.

Logitech makes a cordless mouse that can be moved from one side of the keyboard to the other.

Of course, a cordless mouse still requires room to move around.

An additional problem with a cordless mouse is that it is powered by a battery, which must either be replaced or recharged.

A new cordless mouse called the GyroMouse Pro can be waved around the room and lose none of its pointing power.

By eliminating the cable, a cordless mouse removes one bit of clutter from the desktop.