The AudioHub's main section, which hosts a 3-inch woofer, rests behind your laptop; a pair of 2-inch tweeters extend to peek from behind the edges of your laptop. Measuring 20-by-3.75-by-5.25 inches when the speakers are fully extended (17-inches wide when the speakers are not extended).

The AudioHub has only a USB connector for grabbing USB audio from your computer; there's no line-in for plugging into your laptop's audio out port, or to connect an , , or other audio device. The AudioHub isn't bus-powered, either; it requires the use of a power adapter. But the speaker does have a three-port powered USB hub for connecting other peripherals.

As far as sound quality, the AudioHub creates a full, warm sound, but bass sounds muddy. For movies and video the AudioHub sounds good, but if you like music with a lot of bass, the AudioHub's lack of bass definition may disappoint.

The AudioHub provides a substantial power boost over the built-in speakers of the 2.33GHz Core 2 Duo MacBook Pro I used for testing. The built-in speakers are ideal for when you're sitting directly in front of your laptop, while the AudioHub volume is loud enough to allow you to sit back 7 to 10 feet on a couch while a video plays. (Because the AudioHub is a USB audio device, you can't use it and the built-in speakers at the same time.)

The other major improvement over the built-in laptop speakers is with stereo separation. Because the AudioHub speakers are farther apart than the laptop speakers, stereo separation is much more noticeable, especially when watching movies.