With the popularity of mobile phones, the demand for electronic jammers in various conferences and examinations has also increased significantly. Therefore, electronic jammers naturally have a broad market. However, the vast majority of customers lack sufficient understanding of electronic jammers, and they often unilaterally choose high-power electronic jammers to achieve good results. But they do not know that it has caused some hidden dangers.

Generally, for general examinations and small courses, choosing a low-power electronic jammer can achieve good results. However, we note that many schools and important conferences tend to pursue high-power electronic jammers. For example, a high-power electronic jammer is installed in every classroom, and after the examination, due to the lack of attention to the use, a few shields are often not turned off in time and kept on for several weeks. Therefore, I hope that the units that need to use electronic jammers do not blindly choose high-power electronic jammers. For a classroom, It is sufficient to select a shield with low transmission power to achieve the shielding effect. After use, please turn off the shield in time to avoid continuous radiation. It is also necessary to choose the shields produced by regular manufacturers, and the shields produced by informal manufacturers often deliberately increase the transmission power in order to pursue good shielding effect.