Here's a link for you on something with a bit more info (probably more than you'll want)
www.cheniere.org...
As for those devices, some look pretty cheesy... a "Wish machine?" Yeah, ok. Works on the placebo effect I'd guess.
As for the meditation glasses and earphones to induce meditative states. I'm guessing there's probably something there, but I'm not spending that
kind of money to find out. Anyone seen any research on any of these devices in terms of credibility?
Peace,
+Jammer