Alice-999

Here is a articels describe detailedly about cell phone jammer:<a href="https://electronics.howstuffworks.com/cell-phone-jammer.htm" target="_blank" rel="nofollow noopener noreferrer">How Cell Phone Jammers Work | HowStuffWorks</a>

Jamming devices overpower the cell phone by transmitting a signal on the same frequency and at a high enough power that the two signals collide and cancel each other out....