Bests & Worsts Reviews from Amazon

I taught Physics for close to 40 years and can vouch for this product's effectiveness. It reduced the electromagnetic output. Our living room, kitchen and two bedrooms were still covered via Wifi, but our remote bedroom was not. Just what I wanted. This is a simple Faraday cage big enough for Comcast modem/router towers. Tip: Use the base as the top for the Comcast tower and everything fits fine. Don't accept 5G routers. They will give off a lot more energy since the emitting frequency is higher. Our router is 4G, so that was not a problem. 5G has an unproven record of safety so do not upgrade your phone until more studies are done.