In this era of short videos, more people use mobile phones, which have many functions, such as watching movies, chatting, and so on. However, there are also some people who plan to use the convenience of mobile phones to cheat in exams, which is a very bad behavior and cannot be advocated. It is also a strictly prohibited behavior in exams. In order to prevent and eliminate this phenomenon, installing signal jammers in exam rooms has become a common means. This is a shielding device that can completely eliminate cheating.

When sending and receiving information to the outside world, mobile phones require communication signals as support. Without signals, it is impossible to receive and send information, and signal jammers can precisely isolate the communication signals, causing the phone to completely lose contact within the shielding range. This approach has been vigorously promoted in the exam room, providing better protection for the order of the exam room and allowing candidates to achieve a true score. When choosing to purchase signal jammers, be sure to choose the latest version of the shield. If the communication signal in the environment is strong, it is necessary to use higher power shielding products to achieve good shielding effect. Shielding products with different powers are suitable for different environments, and suitable products should be placed in appropriate places. There should be a signal shielding product in the exam room to create a good exam environment.