We used to be students in the school. We know that the school has a box similar in size to a speaker. This is what we call a mobile phone jammer. Why do schools install cell phone jammers? The answer is obvious: cell phone signal jammers can block cell phone signals and prevent cell phone use. The installation of mobile phone jammers in schools is mainly due to the increase in the number of students using mobile phones. Almost every student has a smart phone.

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The 5g signal uses mobile phones, which is an important electronic device for us to carry mobile phones. 5g will bring great benefits to mobile phones. People's requirements for using mobile phones to access the Internet will become faster and faster. Now we usually use our 4 g signal, among which the signal using 3 g or GSM network is weak.

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