Cell phone jammers prevent illegal communication between prisoners.

If someone is listening to a cell phone jammer, you will have a negative first impression. Why on earth would anyone want to cut off a cell phone user’s communications? In fact, there are many reasons to consider using a cell phone jammer— and in different settings. In schools and universities, cell phone screens are especially useful. Cut off cell phone signal, students will not be disturbed by cell phone. Plus, they can’t cheat by texting each other during exams. Cell phone jammers can also be used in high-security settings, such as prisons and detention centers, to prevent illegal communications between prisoners and visitors. In places like movie theaters or libraries, cell phone screens are of course also beneficial, as other patrons want quiet so they can enjoy their activities.

In fact, cell phone jammers are not intended to harm. In fact, the emergency frequency will not be affected even if the phone signal is intercepted. So, in order to give yourself and your clients the tranquility they deserve, while also allowing people in your building or facility to be safe from signal interference. When our mobile phone signal shielding work, as long as the transmission power is too large due to improper settings, in a small area of ​​a multi-functional hall, teachers and other areas where the pressure is stored, the electromagnetic waves are superimposed in the narrow and long area space, passing through the wall that was originally separated from the outside. The multiple reflections from the ceiling and the ground will cause the personnel in the room to be exposed to more serious electromagnetic pollution. Using the survey, the college entrance examination and the senior high school entrance examination are the occasions where our mobile phone signal is used to block the most, and in some test rooms that use our mobile phone signal blocker, the essential parties (gaokao inspectors, candidates and teachers) are in a state of irritability and inability to concentrate, etc. , Individual candidates even have headache symptoms. There are various indications that if our mobile phone signal shielding transmission power is too large, it will seriously affect the normal thinking of candidates in the examination room.