A Faraday cage (sometimes called a Faraday shield, RF cage or EMF cage) is a shielded enclosure formed by conducting material or by a mesh of such material. The enclosure is like a sealed tin can; it keeps the electromagnetic fields inside, and blocks the entry of external electric fields and radio frequency waves.
RF Shielding Bags Aren’t Just for the Police
|Fall Off the Grid
Your phones GPS might be off, but depending on phone settings, location reporting can still take place. When you use a faraday bag, RF signals are cut off and location tracking is no longer a possibility.
|No More “Straight to Voicemail”
Phones report back to the phone company before shutting down sending calls straight to voicemail. When signals are blocked by a faraday bag, calls will ring through like normal.