EMF RADIATION SHIELD FOR WOMEN and MEN. Radia Smart Sheilding Hood/Hat blocks radiation from cell phones, wifi, laptops 99.9% effectiveness. It is tested by accredited lab. Protect you and minimise your radiation exposure. It provides EMF radiation protection. COVER AND PROTECT YOUR HEAD. Radia Smart shielding Hat is well designed to protect your head from radio frequency (microwave/wireless) radiation from wi-fi routers, cell towers, mobile and cordless phones. HIGH EFFICIENCY. Efficiency of 99.9% Shielding Effectiveness (~50dB). Tested by accredited lab. ONE SIZE FIT IT ALL. It is well designed to fit most of women and men. If for any reason that doesn't fit you, free return and refund to Amazon. A PEACE OF MIND. Reduce your concerns about everyday radiation from cell phones, wifi, laptops. It provides you the peace of mind when you use Radia Smart hood/hat everywhere you go.