Supposedly the clock (it was a digital readout clock) was treated with Tice's TPT treatment, and plugging it in on your audio system's circuit would improve the sound of your system. Both Stereophile and TAS tried it out, and some people heard a difference, some didn't. One thing I do remember was that one writer plugged in the plain old Radio Shack clock without the TPT treatment and heard a difference, leading one to believe that maybe the clock itself was the cause of the change, not the TPT treatment. Whether the difference was an improvement seemed to be debateable. I couldn't see spending $350 for a clock, so I had no interest in trying it out. It probably showed that putting any electrical item onto the same electrical circuit as your audio equipment (or possibly even another circuit; I can't remember the way it was supposed to work) could affect the sound of your system.