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I'm curious how much can the Jammer shielding in the end range, is not there can be 1 km away, it would be too crazy
In Canada, we care about the issues discussed aspects of the signal, mobile phone jammer are very small areas and purposes.
Unlike cell phone jammer signal transmitter, which is a waveform interference, wave superposition. In the design and use very professional.
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.
Hand-held cell phone signal jammer are very convenient tool to prevent boredom ringtones, reduce unnecessary upset.
Swiss luxury watches on workmanship is absolutely excellent, they use artificial production, I believe that the high-end designer watches is definitely a genius.