Stops radiation really well
I had one of these on my phone and someone was telling me that phones have a lot of radiation. She did kinesiology on my arm while I was holding the phone expecting it to be weak. It was strong. She could not understand what happened, especially as when I held her phone I was weak. I showed her my 7D disk and told her how it worked and she wanted one, so I ordered two.
Reviewed by: Chris Puddy from UK.