Hi Amy! Yes, it is possible to jam any signal created by equipment made so far. All you need to know is what frequency range has the signal you want to block and get the necessary jamming device to deal with it. For example, you can jam a cell phone signal at home and be able to control its appearance around you. And do not be afraid, there will be no audible sound when jammer works. The only noise it produce is the electronic one ;) phone jammer kit haringtonphone jammer lelong kereta wifi blocker Or.