Blocks about 85% of the EMF, RF radiation WiFi routers emit.
Easy installation, no assembly required, no need to turn your router off and reset everything like other copy products
Uses the proven Faraday cage technology to block RF waves
Can still use your router while shielding you from about 85% of the EMF your router emits
12 x 9 x 3 inches but does not fit large WiFi routers like the Xfinity or ATT Unverse routers. If you have a big router please see our "Large Router Guard made specifically for the large routers.