EMF beanies with silver shielding - signal attenuation up to 99.9%, laboratory tested, Kyiv

Every day in big cities we are within the range of Wi-Fi routers, smartphones and other sources high-frequency signals. For people who experience fatigue, headache or discomfort from "digital noise", this beanie hat can be a convenient aid.

A microlayer of silver is placed in the structure of the fabric, which partially reflects and scatters radio waves. This allows you to reduce the intensity of radiation near the head and create a more comfortable environment. Beanie is soft, hypoallergenic, pleasant to the skin and suitable for both adults and children.
(//tractor-service.com)
It is not a medical device, but it can help people who want to reduce the digital load in their daily lives.

Buy a hat with radiation protection:

https://i-mag.kiev.ua/p2634321421-shapka-bini-zaschitoj.html