It cannot be vaguely said whether this Cell Phone Blocker Legal For School equipment is harmful or not, and the severity of the damage. Because it has a lot to do with the distance between the device and the body, signal strength, etc. This device, like the one on a cell phone, emits electromagnetic radiation. The adverse effects of electromagnetic radiation on the human body have always been a topic of international debate. So far, there is no authoritative scientific research and data to show this problem. According to the pyroelectric effect, electromagnetic radiation can stimulate the nervous system software of the body. "But how big are the side effects? Does it cause cancer? There isn't any scientific research to prove it.
The use of mobile phones is increasing, and it is convenient to contact friends, but in some places, mobile phones still have to be stopped. There are several base stations in the city. The cell phone jammer transmits on the same frequency as the cell phone and cuts off communication with the base station. There are many types of Cell Phone Blocker Legal For School on the market. Some devices can only interfere with one frequency, while others can block multiple signals at the same time.
