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 Discreet Protection: Enjoy peace of mind with this inconspicuous beanie that shields you from E.M.F r.adiation without compromising style. Lightweight and Breathable: Made from a comfortable and breathable fabric blend, ensuring you stay cool and relaxed while wearing it. Its softer than lambs wool! Versatile Design: The sleek and stylish look allows you to wear this faraday beanie hat in various settings, both indoors and outdoors. Adjustable Fit: Features a stretchy and flexible design that can accommodate different head sizes for a secure and comfortable fit. Effective E.M.F Shielding: This beanie hat is designed to protect against harmful electromagnetic radiation emitted from electronic devices. emf blocker for cell phone, emf protection, emp protection, lamb hat, radiation blocker for cell phone, emf blocker home, emf hat, emf shield, emf blocking hat, emf protector, emf clothing, emf beanie for men, emf radiation blocker, certified emf protection, emf protection clothing, emf blocking clothing, emf hats for men, aires tech emf protection, emf blockers, life tune emf blocker, faraday cap