Cheap GPS jammer
This technique has a side effect that can be viewed as both positive and negative. Because if a cheap GPS jammer has been activated, you will no longer be able to use the cellular network. So you always have to take into account that using a jammer also switches off your own cell phone traffic, as making calls with a cell phone is made possible by the radio frequencies that are disrupted by the jammer. But this can also be seen as an advantage. Because while some people complain about the lack of mobility, for others this is the real reason to buy.
