When they use a cell phone jammer to stop cheating, mobile phone users to 100 meters away from the remains will be affected and not in communication. In this case, they will complain of the use of mobile phone jammers, and report to the police.
So, if you can only use the best 4g cell phone jammer in some public areas, and hopes to obtain enormous result, you should not choose those with extremely low price, but the expensive but trust in 3 G mobile phone jammer. In order to protect the privacy and security of the public domain, we need to use mobile phone jammer.