Peel the backing paper off the back of the Shungite plate and place it on the back of the mobile phone or inside the case. They can be used on cordless phones also.
Scientific research and experiments have shown that placing Shungite close to your cell phone, laptops, computers and other electronic sources significantly weaken the impact of electromagnetic radiation on the body.
Shungite is said to balance and harmonize negative EMF energies making them more biocompatible to the human form.
Measures approx 30mm round