A few minutes later, a man with a Wenzhou accent came over and took reporters to his store to check the goods. When he came to a counter selling "counterfeit machines" on the second floor of a communication plaza, the man took out a box full of English from the counter and opened it. A machine the size of a landline telephone stood before him. The man said, "This shielding range is about 15 meters to 30 meters, and your conference room can be covered. The price is 2,000 yuan." The man told reporters that this How To Build A Cell Phone Blocker Pdf is a foreign product, but the operation is very simple, as long as he teaches you. Learn and sell well. People from schools and some units often come to purchase. "This one does not need to be installed. It is placed in the conference room during a meeting. Pressing this button will interfere with the mobile phone signal within the range you set." The man was operating the button when he was selling products to reporters. When the reporter asked if he could try the effect on the spot, the man smiled and refused: "The mobile phones of these people nearby must be blocked and cannot be used indiscriminately." The reporter left on the grounds that the price was too expensive. The reporter visited many mobile communication stores on Taisheng Road and found that this kind of cell phone jammer is easy to buy in the market. While most claim to be used for meetings or to prevent students from cheating, the real use is beyond your control.
With the popularity of cell phones, a machine called a " How To Build A Cell Phone Blocker Pdf " is sometimes installed in theaters and concert venues to prevent cell phones from ringing and to take security measures in companies and homes. This machine is sold under the name of "use of weak electric waves" and "installation without authorization", but a radio license is required to use it. If these machines are used without permission, they will interfere with other radio stations such as mobile phones, violate the broadcasting law and be punished, so please be careful not to take it lightly. Even in places with good visibility, not in service areas - are devices that interfere with mobile radio waves illegal? With the proliferation of cell phones, annoying phone calls that ignore etiquette have become apparent. The use of commercially available 4G phone cell phone jammers to disrupt such calls appears to be increasing. Such equipment, if cheap, can be purchased for less than 2,000 yen. On the other hand, is it illegal to interfere with a call? but? A coffee shop that can't use mobile phones! All work communication can be done by mobile phone.