Unfortunately, restaurants, movie theaters, concerts, shopping malls, and churches are all affected by the proliferation of mobile phones because not all mobile phone users know when to stop talking. When the talker shares intimate details with his friends and others in the area, who hasn’t talked about an incredibly personal situation through one side of the conversation? While most of us just complain and move on, some will take extreme measures in retaliation. Cell phones are handheld two-way radios. As with any radio, the signal may be interrupted or interfered with. https://jammers.store/wiki/how-does-cell-phone-jammer-work/