The XtremeMac MicroBlast is an iPod speaker/dock designed for the iPod nano. This 1-inch-thick black plastic speaker consists of four small drivers (3 watts per channel) behind a metal grille. It has a folding clear-plastic cover that swings around to form a desk stand, and it runs on AC power or four double-A batteries. The sound is a bit tinny, and the iPod's Bass Boost equalizer setting doesn't help a whole lot, but the MicroBlast can easily get loud enough to annoy your coworkers in the office. The speaker itself has no controls other than an on/off switch on the back. You control the iPod's volume using the click wheel, since the speaker receives the audio signal via the 3.5mm headphone plug next to the dock connector (the dock connector is only for charging).