Does the dormitory need to install a 4G cell phone jammer?

Now, the use of mobile phones in classrooms is very common, and students believe that they have the right to use mobile phones during class. Instead of listening to instructions, they send text messages, listen to music on their phones, watch videos and movies, so they have to repeat these instructions over and over again. Some students made voice calls or made phone calls during class. In this case, you need to use a mobile cell phone jammer.

A female teacher told reporters that the school installed a 4G mobile phone jammer in the dormitory. This is an act of internal control, which is a good thing. He said that most of the time is now on smartphones, and many students play all night and lie in bed all night, but the next day's classes are very unconscious, which will affect their learning. After installing the jamming device, students will not be able to stand up and play on the phone, and it will be better the next day.