Many people have this problem. I have a question about cell phone jammer. "Yes, it is forbidden to use mobile phones in schools. Teachers who work in the field can really do this, just to keep it. I think it's difficult. For example, I think there is a way to install mobile jammers in schools. , But how to deal with the law, it is up to the individual to decide whether it is legal to install such a machine?

Regarding this issue, "the scope of communication deterrence is limited to a specific space, and the space (concert hall, theater, and theater; hereinafter referred to as "concert hall, etc.") is not open to unspecified people. By suppressing communication with mobile phones, etc., It is necessary to protect visitors to concert halls, etc., and to ensure the smooth progress of business.