In recent years, with the rapid development of mobile phones, it is not uncommon for students to use mobile phones to affect their life and learning. Some students often use their mobile phones to surf the Internet in bed, and some even use their mobile phones to surf the Internet in the middle of the night. It is still one or two o'clock, so in order to prevent students from playing mobile phones in the middle of the night and give themselves a better rest, many schools have to choose to install wifi jammer in their dormitories.

　　So is it enough to put a high-power mobile phone jammer? Is every room in the school dormitory like a school exam room? Actually, how to select and install it is explained below. The cell phone signal jammer gps in the school dormitory are mainly used at noon and evening when students are resting. Noon is generally 12:00 to 1:30, and evening is 11:30. until 3 am. That is to say, there is no need to shield the mobile phone signal 24 hours a day, so the shielding device of the ordinary power supply such as the external adapter is also optional.

　　The wifi jammer gps can be big or small, and there are many channels in any frequency band of mobile communication. They are technically channels, and both channels can be used as BCH. For example, in the case of masking, there is uncertainty even in some cells.

　　The scope of cell phone signal jammers is limited to classrooms and dormitories. Obviously, the school's behavior is mild and does not affect students' freedom of communication and expression. The exercise of any right is limited and must not prejudice the rights of others or the public interest. The freedom of communication and speech that citizens enjoy in accordance with the Constitution and the law shall not exceed their due scope.