Some people use WIFI when disregard the feelings of others, so I think sometimes need to have Wifi Jammers used against these people.
How to make a cell phone jammer? In China to buy a small module, so you have a test board, and can be assembled according to their needs a 4g jammer.
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.
phone signal Blocker can be used in preventing WIFI signal, Bluetooth signals, 2.4G signal. Also can prevent those tools such as the transmission signal devices such as wireless camera.
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