Electic boots manufactured by Ol' Fatty's. The box says that there are no fewer than eight lights falshing at any time and are whisper quiet. When the boots are plugged in, the lights on the boots do flash, but they make an obnoxiously loud hum. They also suck up a lot of energy, which is probably what "solid state" means.
I just got my new Lectric Boots in the mail today!