Mobile phone frequencies jammer, as a small tool to interfere with mobile phone signals, is very popular with some teachers. Frequency disruptors are selling very well, and customers buy them for different reasons: for transportation or in some public places, there are also some parents who want their children to use less mobile phones while they sleep, or teachers Some portable cell phone jammer equipment can be installed on the church.
Cell phone frequencies disruptor are banned in the United States, but in the military field, such as the army, security agencies can be legally owned, and even in France, the law clearly states that cell phone disruptor can be legally used in theaters. Many internets now sale various types of disruptor equipment, and users should pay attention to the place of use and the frequency of influence when purchasing.
