What is MHz mean?
The megahertz, abbreviated MHz, is a unit of alternating current (AC) or electromagnetic (EM) wave frequency equal to one million hertz (1,000,000 Hz). MHz is a common unit of signal frequency used to distinguish different frequencies. Cell phone jammer device with different frequencies can block different cell phone signals. This is one of the criteria that we need to pay attention to when we pick a jammer.
Can use cell phone jammer in church?
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