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How to kill cell phone signal?

Edith P. May 16, 2018 16:42

Cell phone scrambler is a blocking device of cell phones, which sends the blocking signals to towers from the same frequency range of the cell phones, the interference cause the cell phone to lose the signals from the station. Due to the popularity of smart phones, more and more attempts are needed.

The uses they suggest: Libraries, court rooms, meetings, classrooms and anywhere else attendees need to stay off of their phones but might not need to make an emergency phone call.