The EMF protection that does NOT try to block the EMF, we actually TRANSMUTE the harmful EMF of 5G to a BENEFITIAL EMF for your body! It is totally HEALTHY to be on your cell phone when you have the Sirius Earth Strip on your cell phone, Healthy for YOU AND the Person you're CALLING! There is also a FB live video on my channel where we tested this in a 3 way call, and I can test it with you long distance anytime you want :-), have fun, Joe, the red laser guy