flat-panel speaker technology doesn't get an awful lot of love these days in the high-end audio realm, but that's not to say some outfits aren't putting it to good use. Take SMK-Link Electronics, for instance, who just pushed out the most spectacular must-have product ever for the traveling salesperson in your life. The five-pound GoSpeak! Pro is little more than a fold-out speaker system, which is slim enough to slide easily into any briefcase yet potent enough to project PowerPoint audio to some 200 listeners (yes, 201 actually is impossible). As expected, you can also hook up a wireless microphone to let your voice project through it as well, but with a base price of $399, you might consider just yelling really, really loudly.