Don't waste your money. There is no* scientific basis for these devices at all. If you need a lucky magic charm, surely you can find one cheaper or at home rather than paying for one. If you really need to toss away $80 to $150, send it to me.
* no means, zero, zilch, none, nadda. These hunks of junk have never passed a double blind study (that is, they are no better than bracelets made of anything else). All reported benefits can be summed up in one word: placebo. If you
think something will work, your brain is powerful enough to sometimes make it work. I mean, look at these claims "Constantly reinforces your body's own energy systems", how? From what energy source? How does it get into your body? "Strengthens your resistance against the negative effects of stress" Strengthens, how? Specifically what negative effects of stress. They also claim they have proof, but nothing specific at all. Just "medical diagnostic equipment" what equipment? where? and under what conditions? who ran the test? Is it published in a scientifically peer-reviewed journal? Finally, don't be fooled by the quote from the PhD at the bottom. Just because you have a PhD doesn't mean that you are qualified to comment on the device -- PhD in what? Not only that, but it's not like people who have recieved PhD's are immune from being bought or immune from making mistakes. The same can be said of the touring pros who wear/endorse these things. They are not immune to placebo effects, or to needing the endorsement money.
Don't just take my word on it either. Here's one of many critical reviews of a similar product:
http://www.quackwatch.org/04ConsumerEducation/QA/magnet.htmlAnd another one:
http://www.quackwatch.org/01QuackeryRelate...nyAds/qray.htmlSo, in summary, it is an utter waste of money.