It's certainly bullshit.
Like folks have said, you
can alter the mind with strong oscillating magnetic fields inside the brain -- it's called TMS, transcranial magnetic stimulation, and is being actively researched both for neuroscience purposes and as a safer/nicer alternative to electroshock.
But TMS devices are
not cheap.
Wikipedia says they run $25000 to $100000. And they're not safe either; certainly you can't just go buy one from some cheesy online store anymore than you can go buy yourself an electroshock setup that way. This stuff is FDA regulated, folks.
In any case, this piece of crap -- which runs from your damn
sound card -- won't do jack. To be effective, TMS needs huge magnetic fields. On the order of 1 Tesla, roughly the same field as in MRI machines. If you've ever had an MRI done you know the magnets involved are big, not piddly little things. A standard magnet of that strength takes several
thousand watts of power to run. That's the kind of power that you need a special wall outlet & wiring for (like a clothes dryer has.) Your computer's sound card, by the way, can provide maybe 10 watts, and that's being generous. This thing is a joke.