I went to the library to read a book during the holidays, and found that many of the libraries came together. They took out their mobile phones when they sat down, and chatted aloud while playing. It was particularly annoying to remind them that it was useless. Today, wit a mobile phone to open a hotspot with the same name as the library free wifi. Someone connected to the Internet, but found that there was no Internet, and then continued to play using traffic ...
I searched the Internet for a mobile phone signal jammer. In fact, I only need to shield the 3G and 4G signals used for surfing the Internet. However, the shielding equipment that can shield 4G networks has other signal shielding functions, and it is very portable in terms of volume and power. The price is relatively low, and it can be used for more than 2 hours on a single charge, which is great for those who are used to soaking the library in the morning.
In recent years, various types of cell phone jammers have continuously appeared, and we are all dazzled to see them, but in fact not all products are suitable for us to use in places where we need them. Some products are public, so It is not suitable for our application in other fields. There is a very special shield that also appears in front of us. It is a wifi jammer.
When we use a wireless signal blocker, you will find that no matter where we are in a space, as long as the switch of the blocker is turned on, then everyone has no way to search for your wireless signal. In other words, you cannot use a mobile phone when using wireless signals. The application area is very wide, and can be used in examination rooms, gas stations, troops, courts, churches, etc.
With the development of the Internet, the development of wireless signal shields is also very fast, and the shielding signals are becoming more and more diverse. WIFI 2.4G 5.8G signal; adopts high-diffusion aluminum alloy shell, low working temperature, stable shielding effect, and equipped with car charger, easy to carry at any time. Customers can choose according to the frequency band they need to shield, pay attention to their interference frequency and shielding range when purchasing.