With the progress of society and the development of high technology, people's living standards are getting higher and higher. Now mobile phones have generally become a living habit of adults and children. For primary and secondary school students, the impact is more important. It may affect the eyesight, and even more serious is the abandonment of schoolwork, and even illegal crimes.

Since the advent of the cell phone signal jammer, it has been well received and trusted by the examination rooms, schools, prisons and other units. In fact, the cell phone signal jammer is no longer a new technology in foreign countries. In recent years, it has also begun to sell on a large scale in the domestic market, bringing good news to many places where the use of mobile phones is restricted! The cell phone signal jammer only interferes with the downlink signal, so it will not affect the normal use of mobile base stations and other electronic products! Nowadays, many primary and middle school students have one mobile phone per person. Some are addicted to games, some are addicted to novels, and some are even browsing some unhealthy and vulgar videos or pictures, etc., which are more dangerous for school exams. Baidu has all the answers. If everyone in the exam plagiarizes with their mobile phones, it defeats the purpose and meaning of the exam!

So what is the role of the mobile phone signal shielding device in the examination room for the school? In early June every year in recent years, the three major operators of China Telecom, China Mobile and China Unicom sent a text message to all users, prompting that "the national college entrance examination will be held from June 7th to 8th, because during the college entrance examination, each test center will turn on high power. The mobile phone signal blocker will greatly affect the communication quality of the surrounding users, for the sake of the majority of candidates, please forgive me, and I wish all the college entrance examination students a smooth exam!" The meaning of this text message is to tell everyone: the use of a mobile phone signal blocker in the examination room, it is possible It will affect the normal use of mobile phones of residents around the school. The mobile phone signal jammer provides a fair and just test environment for the school, allowing candidates to achieve good results in a quiet environment!