Radia Smart Fleece Earflap Hat Beanie EMF Protection, Anti-Radiation Cap, Brian Coat,Block Radiation, Black

They say don't test it with a cell phone which makes no sense. If I can still get a cell phone signal of course that means it doesn't work right?

don't the loose edges of this beanie let some emf in and then trap it in?

Can you make a option with thicker shielding material id like the most protection i can get

Hello what is the shielding efficiency up to 5ghz? besides aesthetics how does it compare to your other beanie asin b09flszryp