Cell phone jammer in the use of very simple, only need to install the corresponding antenna, turn on the switch can shield mobile phone signals corresponding to it.
WHERE TO BUY JAMMERS The legality of owning, using and selling cell phone jammers is different depending on where you live.
In Canada, we are always looking for quality of life, so cell phone jammer in everyday life to always be able to use.
What mobile phone jammer in the examination room is the real meaning? That is to make cheating candidates signal disappears, so that everyone fair exam.
Knowledge: the signal is actually encrypted transmission of electromagnetic waves, the signal peaks and troughs on behalf of 1,0. cell phone jammer play a superposition of waves, resulting in the shielding effect.
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