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How can we cut off cell signal by jamming device

Perfectjammer 2019-10-27

We can listen to music and surfing on the Internet. We chat or play mobile games with it on hand. It is easy to carry and make our life more colorful. But there are also some opposite views. It hurt our eyes and skins. Some people get variety of health issues after they use it many years. Students would like to cheat at examination with it. And some espionage theft core data at company and so on. Because of these reasons we need to cut off the Mobile Phone signal sometimes.

Using cell phone jammer is now quite common. More and more people use them to protect their rights. It is not uncommon to see this kind of equipment in cafes, restaurants, cinemas, libraries and other places that need to be kept quiet