1.Reduce EMF - This sticker absorbs EMF and counteracts the harmful effects of EMF / EMR radiation generated by electronic devices. Reduce radiation by up to 99% with the radiation protection sticker. 2.How it works: the radiation protection sticker consists of a radiation protection film and a negative ion film that release negative ions that neutralise the positive ions generated by electronic devices and protect our health from EMF radiation. 3.Widely used: this radiation shield sticker as EMR protection for tablet PC, mobile phone, kindle, computer, air conditioner, refrigerator, microwave, printer, washing machine etc. It converts radiation into other harmless forms without blocking signals 4.Easy to use: you can easily stick EMR stickers on the back of your mobile phone and other electronic devices. The EMF radiation protection does not deteriorate. It has a very long service life, does not need to be replaced annually and will serve you for a long time. 5.Slim size: lightweight and thin enough to not add any weight to your phone. Stickers prevent too big things behind your phone when you put it on a table. You can take it anywhere. Protect yourself and your family from radiation.