Displayed by Internet users. That’s a cell phone jammer . In this empty classroom, the power cord was not connected to the signal shield, nor was the switch turned on. Therefore, the reporter’s mobile phone signal is normal, and the network can be used normally. The reporter will also find several floors in the second teaching building, both school classrooms and empty classrooms. The cellular signal remains the same and you can receive messages, make calls and use the Internet.
The mobile phone is the electronic device we use the most today, and our communication and entertainment are inseparable from it. This is an important tool. Especially in recent years, the rapid development of mobile phones has greatly improved the appearance and functions of mobile phones, which is also the temporary pursuit of many young people. Their stylish tin foil phones are popular among young people. There are also fewer restrictions on mobile phone use, with young people using mobile phones everywhere. They rely heavily on their mobile phones and cannot escape their control.
Arden tried unsuccessfully to prevent cell phone jammers from entering the prison. Instead of fighting that losing battle, they might be able to block the use of the phone once it gets inside. In theory, you could implement something that switching the phone to “way mode” allows when the phone is in a position where you can’t talk. But no one is suggesting it as a product or standard, although it’s not particularly difficult. Maybe because it will be movie theater owners and restaurant owners who will have to pay for it.