This signal shield holster with signal isolation function, when you put the phone into the holster, the signal will stop transmission. This is a very gentleman’s way of shielding, neither disturbing others, nor let others bother you.
In some scenarios, the signal is likely to cause unfair events occur, so most of people prefer to directly use test special blockers, this is because in the examination room, some students want to do everything you can to cell phone use is inevitable, and take photos to convey information, under such circumstance, if we really can use GPS jammer, then you will find each other finally results are the same, so that can ensure the test process more complete.
What would you do if you had a call that you did not want to answer, or would you like to stay quiet? Maybe some people will use mobile jammers, but this is not necessary. If you only want to make sure your phone can not accept the signal, then you can try using this signal to shield the holster.
It is reported that the interference shielding device will scan to the low frequency and high frequency of the channel at a certain speed during the working process. The scanning speed can cause chaotic interference in the signal received by the mobile phone. The mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station.
Jack, a high school student, said his cell phone was off during school and was used when he came home from school to contact his parents. “There is nothing wrong with installing a drone jammer in the classroom, which ensures the normal teaching order.” Jack agreed with the school.