The production process of a very practical large-scale mobile cell phone jammer is to enhance a strict, stable and reliable quality system, followed by production and environmental protection, and ideally information security. Block other mobile signals. Does not affect the normal operation of other electronic equipment. Under normal circumstances, using a mobile phone jammer at a distance of 200m from the base station has the best effect. Stabilize the power supply. The soft-start circuit design can avoid the fire caused by the mechanical switch. College entrance examination, adult college entrance examination, self-examination and various higher education party and government agencies, small and large conference rooms of mobile jammer companies, concert halls, theater detention centers, forced labor camps, prison scales, gas stations, gas depots, oil, gas stations and Other flammable areas will change the transmission frequency and customer requirements according to the on-site debugging environment. The product can be screwed directly to the wall or ceiling with a mobile phone jammer. The surface temperature of the product can reach 50°C. Please stay away from objects to keep the heat low. Installation height: 1.0-2.0 meters of podium or the highest classroom.