Is the presence of cell phone signals essential within educational settings?

For many schools, as the day of the college entrance examination is getting closer, we are now preparing equipment and materials for the examination room everywhere. The test signal jammer is undoubtedly a very important one, because it is an effective way to eliminate the inspection room. High-tech equipment cheats, so the school is very cautious about the choice of cheating on test signals. Can the test signal jammer block all communication signals? Having said that, many people are a little unfamiliar with testing signal jammers. In fact, it has been widely used in the college entrance examination examination room. In the college entrance examination last year, many test centers installed this kind of equipment, and the response was very good. Facts have proved that it has a very good effect on preventing electronic signal cheating. At the beginning of this year, a promotion was carried out to allow more examination rooms to be equipped with protective covers. Nowadays, the emergence of the shield has solved many hidden dangers in the examination room, allowing candidates to take the examination in a fair environment.