Mobile phone is our most commonly used chat tool. With mobile phone, we can make voice calls in real time with friends and relatives, know the national events in real time, and get away from the mobile phone, our life will become very bad. But for school students, mobile phones have become the biggest tool to undermine student learning.
The purpose of the GSM network scramblers installed in the school is to block the students from using the mobile phone to play games online. The general principle of the GSM network signal jammers device is to interfere with the signal of the mobile phone receiving the base station through the frequency emitted by itself. As long as the GSM jammers is in normal operation, the mobile phone cannot receive the mobile phone. The signal to the base station, which can not communicate and access the Internet, mainly interferes with our commonly used GSM 3G 4G frequency band. Moreover, the students can't crack, as long as they interfere with the students' cell phone sig`nals within the range, but the signal will return to normal after the classroom with the closed shield. GSM jammers