How to block signals? Where can signal blockers be used?
There are many occasions around us where the use of mobile phones is prohibited, such as examination rooms, offices, classrooms, factories, meetings, etc. In addition to handing over personal mobile phones to the security department for management in advance, signal blockers can also be used in these places. Mobile phone signals, Wi-Fi signals, and other network signals in special...
0 Commentarios 0 Acciones 622 Views 0 Vista previa
Patrocinados