Phones in modern society are ubiquitous, so when we need to rest in many places, we suddenly think of ringtones that will affect our thinking. We cannot stop this behavior face to face, because it is very impolite not to choose a high-performance wifi jammer. Feel free to use it for your own services, either to keep quiet in a harsh environment or to use it with permission, the principle is actually simple: in the mobile phone area, the mobile phone's receiving capacity has been enhanced, and Not in quiet areas.
