Midsummer June is about to usher in the high school entrance examination and the college entrance examination. In order to ensure the quality of the examination, many schools have already begun preparations for the examination room early. In the process of preparing for the examination room, there is a very important thing, that is to install Police Cell Phone Jammer . However, not everyone can install a mobile phone jammer. So, what should I pay attention to when installing the signal jammer in the examination room? In fact, the installation itself will be relatively simple, but a few small details before installation determine the subsequent use of this mobile phone signal jammer. For example, the environment near the installation site. There is also installation height. cell phone jammer
Over the years, as long as large-scale exams are encountered, in order to completely eliminate fraud on the exam site, it is not surprising to install mobile phone jammers. However, many people have only heard of this thing, and have not carefully observed what it looks like. So, what is the structure of a mobile phone signal jammer? A mobile phone jammer is first of all the material of the shell, there are currently two types on the market. One uses a metal shell, and the other uses a plastic shell. Metal shells are generally used for external Police Cell Phone Jammer, while plastic shells are generally used for built-in mobile phone jammers. The internal structure of these two types of mobile phone jammers is still a little different.
