Here’s a great item to wear hidden under a wig or standard hat to shield your brain from radio frequency (microwave) radiation. Attractive enough to wear alone as well. Fully elastic for a comfortable form fit. Provides ~35 dB shielding up to 10 GHz and beyond. Cranium cover slips on in an instant for all day or all night protection. Can be pulled down to cover part of the ear, or leave the ears completely exposed. The perfect RF defense cap for your brain… a whole new kind of mental block! Suitable for both men and women.