A very good cell phone jammer! There is a very good cooling system, I tested the continuous operation of 24 hours, but the temperature did not increase significantly. The operation is quiet and unobtrusive. In general, it works very well in the office. As a business manager, this device is very useful
Review Super High Power Mobile Signal Blocker
This is a very good block product. The most important thing is that it has many advantages and there are many interference bands, which I like very much.
I am absolutely satisfied with my purchases and the speed at which I purchase them!
It is very effective to put it in the classroom to prevent students from cheating. Students can also be banned from using mobile phones during school hours