In today's society with advanced communications, many people worry about the untimely phone calls of people around them. In order to eliminate this annoyance, a device that can block cell phone signals by manually operating buttons is quietly selling in the United States. Although this signal jammer is recognized as an illegal device by the Federal Telecommunications Commission, sales have increased exponentially in recent months.
The cell phone jammer is not the latest scientific invention, but the high demand in the US market makes dealers buy crazy. This kind of device is only the size of a cigarette box. Users only need to press the button, and the device will send out radio interference signals, blocking all mobile phones and signal transmission towers within a radius of 4.5 meters to 9 meters. You see the words "No network available" on the screen. However, US law prohibits private blocking of signals and imposes a fine of up to 11,000 U.S. dollars on first-time violations.
Although the government has repeatedly stopped, American users still love mobile phone signal jammers. According to the survey, people buy shielding devices for many purposes. Some are in exchange for the quietness of the environment, some are purely to create pranks, and even others are used to facilitate crimes, such as making mobile phone users unable to call for help in an emergency. phone.
The Wireless Industry Association of the United States recently submitted an opinion to the Federal Telecommunications Commission, requesting the retention of the "prohibition of private signal shielding" regulations.