An average lightweight notebook usually crams in a speaker or two or whatever the designers can fit in. Result -- an underpowered sound performance.

The Logitech AudioHub could be its money's worth as it lends the power of a 2.1 speaker system to the notebook or even a PC -- a definite improvement from the mediocre built-in speakers.

The central section of the Logitech's Audiohub, which houses the subwoofer, comprises a sturdy black plastic construction complete with a cable organiser and three USB ports on the side.

The two satellite speakers allow the user to increase or decrease the wingspan of the unit as necessary to fit around the laptop screen or desktop monitor.

Even better, there are no buttons on AudioHub other than a big, plastic volume dial that glows when the speaker is powered on. Even the dial is well-hidden from unsuspecting eyes.