First red flag: Misspelled word (Licenced) vs: Licensed on their Web page.
Second red flag: "Power conditioning" without a true input and output? Yeah, OK.
I think that it is just a box full of MOVs, if there is anything inside it at all. Snake oil for sure. If it was that good, they wouldn't have to resort to waitresses handing out cards for their boyfriend's new way to pay the rent.
Yeah, you can scare people into buying these if you want to. Rest assured that the nickels and dimes that people might think they are saving will take decades to justify the expense. Like people who play the lottery every day, there is a very good chance that they will spend more money than they save.
Want to save money on your electric bill? Reduce consumption. NO magic box can do this for you.
"But the guy at Home Depot said it would work."