With both wireless and wired operation; the Kensington Ci75m Wireless Notebook Mouse's USB cable curls up inside its easy-to-open body.

The Kensington Ci75m Wireless Notebook Mouse enjoys excellent tracking performance.

After wrestling open the Kensington Ci75m Wireless Notebook Mouse's hideously wasteful and dangerously sharp-edged plastic packaging, you're greeted by a pleasant surprise: Not only are the sleek, slim mouse's two AAA batteries included, but they're brand-name alkalines and not cheapo lead-acid no-names. What's more, they slip easily into the Ci75m due to its magnetic latch, which makes popping it open a cinch.

When open, the Kensington Ci75m reveals its dual nature: coiled inside is a two-foot USB cable that can be used in case of the unexpected demise of those batteries, or if you should find yourself in an RF-forbidden zone.

The USB dongle that enables the mouse's 27MHz wireless RF connectivity is nestled in a slot on the Kensington Ci75m's underside.

The dongle doubles as the connection point for the USB cable's mini-USB jack, and slipping it into its in-mouse slot for travelling puts the Kensington Ci75m to sleep-a nice touch.

The next surprise, however, is less pleasant. Kensington's excellent MouseWorks software is not included in the package, and for good reason: it doesn't work with the Kensington Ci75m.

Despite its small size and light weight, the rubberised body of the Ci75m feels sturdy and balanced. Its 1,000dpi tracking proved exceptionally accurate in even my most delicate pixel-pushing, its buttons are firm but not too stiff, its ratcheting scrollwheel responds to just the right amount of pressure, and an in-wheel light warns of low batteries.


Wired or wireless, the Kensington Ci75m Wireless Notebook Mouse is a great travelling companion. Solid, comfortable, accurate, and attractive - it's available in orange, grey, white, or black.