The BioElectric Shield, and EMF protection pendant, uses Earth Resonance Technology, a Physics Based Crystal Technology, to protect you from EMF and other unhealthy energies in your environment. TheBioElectric Shield is based on principles of traditional and quantum physics. The BioShield is composed of a matrix of precision-cut quartz and other crystal designed to balance and strengthen your natural energy field. The ability of the Shield to do this is based on 2 principles of Nobel Prize winning physics as well as Quantum physics principles that include zero-point energy.   Details