A Void Bag is an electromagnetic shielding device that protects electronic equipment from electromagnetic interference (EMI). It is also known as a Faraday cage or a Faraday shield.

A Void Bag works by enclosing electronic equipment in an electrostatically conductive material. This bag absorbs and dissipates electromagnetic energy, preventing it from reaching the phone inside the bag.

The main difference is that if you just turn off your phone, it is still emitting EMF radiation. If you put it in a Void bag, it will be shielded from that radiation.

This will disable all wireless connectivity on your device, including the ability to send or receive calls, texts, and emails. Your phone will also be cut off from any internet connection, so you won't be able to access apps or websites.

BUT turning on airplane mode won't stop someone from physically tracking your device if they have your IMEI number. So, it’s always a win-win situation to have a Void Bag!

This Void Bag is an e-field shielding device that protects your devices from EMP by redirecting and dissipating the electromagnetic energy away from the bag's contents. In other words, it acts like a shield, protecting your devices from the harmful effects of EMP.

Just make sure the bag is properly sealed. Any gaps or openings in the bag will allow EMP waves to enter and damage your devices.