cell phone interrupter device

Need to prohibit the use of mobile phones, we may easily think of teaching, because once we are students, we prohibit the use of mobile phones to provide warning experience. With the development of society, more and more schools have installed mobile phone jammers. In the classroom, the students play with mobile phones and read novels very seriously, and the shielding device will block the working signal of the mobile phone. In addition, we have experienced important exams and will find that it will also be opened in major exams to prevent students from using electronic products such as mobile phones. Children use mobile phones as a tool for cheating on exams. To avoid cheating in exams, school exams need to useย cell phone signal jammer.

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