EMF Blocker How to Test: In order to properly test use a meter with weighted eltectro and R.F freequencies. DO NOT USE YOUR PHONE. Mobile signal ≠ freequency strenght. Our hat been 3rd party tested and proven to signifgnatly reduce expsoure to electromagnetic freequencies but no farday beanie will not block cell signals completely
Faraday hat High Shielding Efficiency:This fabric contains up to 20 grams of pure silver that deflects 99.9% of (3-100 GHz), providing 35-40 dB attenuation against Wi-Fi, 5G, cellular, and Bluetooth signals, all while staying comfortable and stylish.
Free Combination:The Silver Fiber Lining Can Be Worn Alone Or Paired With Other Hats, Giving You More Choices. With This Silver Fiber Lining, You Can Freely Diy
ONE SIZE FIT ALL:EMF Blocker Hat circumference 54cm/21in, depth 28cm/11in,The EMF hat with elasticity,suitable for all head circumference,one size fit all.
Lightweight and Breathable: Made from a comfortable and breathable fabric blend, ensuring you stay cool and relaxed while wearing it.