The products were developed by Professor Svetlav Danev (Chief of the Department of  Health & Safety in the Bulgarian National Centre for Hygiene, Medical Ecology and Nutrition) who has spent many years in the assessment of and protection from electromagnetic (EM) effects on the working population.   During the 'Cold War', he led a research team developing protection for senior politicians against possible psychotropic EMR attacks.

He developed a series of artificially grown crystals that were shown to reduce the effects of EMR on  electrosensitive individuals.   This is now available as the Biophone.

The Biophone can be attached attached to the phone, computer or other EM source and works when the device is near the body.

It can also be used attached to a charm bracelet or keychain or any item that can be worn or carried.

It seems to protect against all forms of harmful EMR.

Watch a video here http://electrosensitivity.co.uk/bioguard.wmv