Share to support usniniasen! Or to Buddy Up :)
In some specific occasions, such as school examination sites and conference rooms, the application of GSM jammer ( https://www.jammermfg.com/cell-phone-jammers.html ) is very common. By effectively blocking mobile phone signals, it can prevent candidates from cheating and keep the content of the meeting private, thereby improving the quality and efficiency of exams and meetings. In some extreme cases, such as anti-terrorism operations, special forces may use powerful jammers ( https://www.jammermfg.com/high-power-military-jammer.html ) to cut off terrorists' communication signals to ensure the smooth progress of the operation and the safety of personnel. This application is not only a protection of information security, but also a defense of national security. @usniniasen