just to have a car and have a cigarette lighter, it is very simple.
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.
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.
Unlike cell phone jammer
signal transmitter, which is a waveform interference, wave superposition. In the design and use very professional.
In Canada, we care about the issues discussed aspects of the signal, mobile phone jammer
are very small areas and purposes.