Call Block Cell Phone Rogers
There are so many exams now, no matter if it is an exam organized by the school itself. It is still a big exam in the society. These are inseparable from Call Block Cell Phone Rogers for fairness, so the quality of mobile jammers determines the fairness of an exam. Therefore, it is necessary to choose a signal jammer for the fairness of the examination. I have learned that there are indeed many manufacturers of mobile phone jammers in China, and there are many types of signal jammers. Before purchasing, users should be clear about their needs to prevent poor shielding from causing examination room accidents. Those who are still paying attention to the method of use. Correctness. So how to choose? cell phone jammer
I want to use the place clearly. Most schools use examination room-type Call Block Cell Phone Rogers which is suitable for long-term work and is of good quality. Secondly, how big are we in the shielded area? For example, a room of 100 square meters is still a venue of thousands of square meters. If the area is large, the power must be larger, and if the area is small, you must consider choosing an adjustable shielding power. Then there is the need to shield which frequency bands, are China Mobile, China Unicom, China Telecom, and CDMA all shielded? It is still only necessary to shield some frequency bands.