portable phone jammer

Portable phone jammer, also known as cell phone jammer, works by interfering with the radio signals used by mobile devices to communicate with cell phone towers. Portable phone jammers are often used in environments where silence or limited phone use is required, such as theaters, exam rooms, libraries, and conferences. In educational settings, portable phone jammer can prevent cheating on exams by blocking students from accessing online resources, messaging apps, and other communication tools.

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