SafeSleeve RF Blocking Beanie | Protect From RF Radiation 。Relaxed fit winter beanie provides comfortable everyday EMF/RF shielding for your head and ears, tested at an independent lab for reliable protection. Condition: Brand new 1. Materials / Fabric Outer layer: 10% wool 30% nylon 60% cotton Inner silver shielding layer: custom silver fabric 2. Features ?PROTECTION FOR YOUR HEAD AND EARS – Shields from radiofrequency and microwave radiation emitted by Wi-Fi routers, cell towers, and mobile/cordless phones ?HIGH SHIELDING EFFICIENCY – Provides consistent shielding effectiveness up to 99% (~50dB) ?ONE SIZE FITS ALL – Light elastic material fits most men and women comfortably ?INDEPENDENT LAB TESTED – Thoroughly tested at an FCC-accredited laboratory to meet high standards for EMF protection ?WASHING INSTRUCTION – Hand wash preferred or gentle machine wash in cold water, air dry only fast shipping, smoke-free home, bundle & save QjBEOUc2OU1IUQ==