With the progress of society and the development of high technology, people's standards are getting higher and higher. Nowadays, mobile phones have become people's habit. For primary and secondary school students, playing mobile phones for a long time may affect their eyesight, and more seriously, they will neglect their studies. cell phone jammer have been trusted by exam rooms, schools, prisons and other institutions since their inception. In fact, mobile phone signal jammers are nothing new in foreign countries, and they have been sold in the domestic market in recent years. Cell phone jammers only interfere with low cell phone signals, so they don't affect mobile base stations and other electronic equipment. Now many primary and middle school students are holding mobile phones one by one, some are addicted to games, some are addicted to novels and so on. It is even more necessary for school exams. Baidu has all the answers. If everyone plagiarizes with their mobile phones during the exam, it goes against the purpose and meaning of the exam!

Now more and more people are eager to get a signal jammer, which can cut off the signals of different frequency bands at the same time according to their own needs, and can also cut off individually. Now in order to meet people's needs, more and more people have designed adjustable buttons to combine different jamming frequency bands in one jammer to achieve the goal, just here "Adjustable Jammer GSM 3G 4G GPS WIFI UHF VHF Signal Blocker (EU Version) "What you are looking at here is designed this way, then you can go through the following to see the details of this example. First of all, this high-power adjustable 8-antenna signal jammer is really suitable for people who live in EU countries and need a multifunctional high-power signal jammer. Therefore, this high-power European version signal phone jammer is designed with 6 antennas, which can easily cut off the signals of GSM, DCS/PCS, 3G, WiFi, 4G and UHF at the same time, which is very powerful. And looking at the interference distance, you will also be attracted by this high-power 3G 4G desktop Wimax GPS VHF UHF WiFi jammer, because the protection radius can be up to 50 meters depending on the signal strength of the location. Accurate, in this case, it can meet the interference range requirements of a large number of people.

The WiFi signal jammer should be placed in a well-ventilated place, try to avoid large objects, and avoid strong electromagnetic sources with strong heat sources to ensure the shielding effect and long-term stable operation. When the jammer is working, it is not allowed to stack other items and remove the antenna, so as not to affect the shielding effect and damage the machine. When the wifi jammer is not in use, the power should be cut off in time to avoid affecting the normal use of the mobile phone. When using the jammer outdoors, pay attention to waterproofing. When the area of ​​the site is larger than the effective shielding range, it is recommended to use multiple shields for cellular installation to ensure the shielding effect. Since the power supply and antenna are dedicated to the host, they are debugged one-to-one at the factory. Please try not to use them interchangeably to ensure the best effect. Keep away from corrosive gases and liquids, and do a good job of dustproof and moisture-proof work, so as not to accelerate the aging of the internal parts of the equipment. When placed outdoors or in the wild, attention should be paid to installing protective devices in environments where destructive animals such as mice and ants are infested.