EMF Blocking Liner Hat Radiation WiFi Signal Shielding Protection Hat Adjustable Baseball Cap for Adult Black

Feature: 1. SHIELDING PRINCIPLE: The induced current is generated by the loop composed of silver fiber in the fabric, the induced current generates a reverse electromagnetic field for shielding, and reflect the electromagnetic wave. 2. COMFORTABLE FABRIC: The appropriate fabric ratio ensures a snug fit without tension, with a certain degree of elasticity, ensuring soft and comfortable wearing without easy detachment. 3. ADJUSTABLE SIZE: Equipped with a hood adjustment buckle, 58‑64cm adjustable, with 12cm deep and 7.5cm brim, suitable for various head circumference, with a wide range of applications. 4. RADIATION BLOCKING: This hat can effectively block the radiation of mobile phones, computers, signal towers, Bluetooth, smart meters, and WiFi, with gentle wrapping, safe and long lasting. 5. WIDE APPLICATION: This EMF protection cap is suitable for men and women, simple and generous, suitable for daily life, outdoor shopping, office, leisure, fitness and entertainment, etc. Specification: Item Type: EMF Blocking Hat Product Material: Silver Fiber, Cotton Color: Black Features: Gentle wrapping, radiation proof, excellent protective fabric, providing a comfortable experience, not stuffy, with good breathability Adjustment Range: Approx. 58 64cm 22.8 25.2in Hat Depth: Approx. 12cm 4.7in Hat Brim: Approx. 7.5cm 3in. Package List: 1 x EMF Blocking Hat Note: Washing Instruction: Wash lightly by hand, do not use the washing machine.