Expert here: DO NOT BUY!
I am an RF technician with expertise in weather-band Radar systems, distance measuring avionics and mode-S transponders. This series of products are absolute snake oil; anyone with an understanding of RF reflectivity will reinforce how wearing something around your neck or a sticker on your phone will do nothing to shield or dampen any radiation around you. The only way you can be shielded from radiation using a passive device like this is if you completely cover your body or cellphone in them.<br /><br />Please do not give these scammers your money.
Rating: 1 stars