If this actually worked it'd be written about in a plain HTML page that looks like it was made in 1998 that goes into book's worth of details about what it does for your brain including documentation of various questionably legitimate clinical trials in cheap universities across the country, and there'd be table after table of data describing either hertz or volts. There would be some program buried somewhere in the text that you'd need a DOS emulator to run properly.
It would not be on a website that looks like it could just as easily be selling recording software, with many pictures of attractive and "misunderstood" people wearing headphones and being sold for $49.99 being corroborated only with "it changes your brain waves with science and sound." or some feeble stuff like that.
