HIGH SHIELDING EFFICIENCY:Adult beanie EMF hat has advanced shielding blocks 99% of wireless EMF radiation (300Hz-10 GHz), 5G, WiFi, Bluetooth.
ONE SIZE FIT ALL:Hat circumference 57cm, depth 28cm，The EMF hat with elasticity,suitable for all head circumference,one size fit all.
PERFECT FOR:Travel, Home, Office, Shopping, Outside and Daily Use.Its EMF material dramatically reduces the exposure to dangerous wireless radiation while outdoors.
DO NOT TEST BY CELL ! ! ! :Please use an EMF Meter to test it.Do not test by wrapping a cell insider the EMF Hat.
