Anti-Hack Phone Box?

Last week, I had a chance to start my original work and actually draft what I want to do for this year. What I want to do for this year is create a device, or a box, that you're allowed to put your phone in and destroy all wavelengths coming from outside the phone. What I am also wanting to find is the most common places where mobile malware occurs using that as a way to propose this product. Essentially what I wanted to do is to fit your device and also let you have the capability to charge your device one side, but when it's inside no one can practically text or anything because you are disconnected from reality. And I want to differentiate this from just turning off your phone completely because it takes a lot more time to turn off your phone completely than it is to just reconnect to Services nearby. It also gives you the capability to charge which will also help. This type of idea is in my opinion good for celebrities and businessmen, because when a celebrity is walking out of the house as a lot of people are around them, what if someone tries to hack their phone from being right next to them. While they're walking they can Simply just put their phone in this box and no one will be able to access it at all. Put in conclusion, last week I worked on my original work proposal, and planning to pursue this throughout the whole year.