The voice of God thing is real at least. It shoots sound waves like a laser so that one person is targeted directly while nobody else can hear it. Though, last I knew, the tech is relatively the size of a cell phone and would be a bit conspicuous. It also needs line of sight, so if you could aim it remotely and put it in the rafters of like a museum or other place with high ceilings, it would work, but it’d be rather case sensitive.