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Are mobile phone jammers legal in schools?

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Hello Harrington! Yes, GSM jamming devices can do this. But you have to know what signals the students are using. In general, today's smartphones are 4G or even the latest 5G signals. So if you need to interfere with this type of cell phone, you need to buy a 4G jammer. At the same time, some students use bluetooth headsets or wireless receivers to cheat. When that happens, you need WIFI or a wireless jammer. Of course, in addition to using the jammer, you can also choose to have your phone taken out outside the exam room and return it after the test. Maybe it is better to communicate with students to solve this problem.
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