To many people, a signal jammer is just a tool to block the signal. It has no other purpose. Do you really understand the jammer? Let me briefly explain for you today. We all want to kill them. When you try to enjoy a movie, dine in a restaurant or take a break from work on a bus or train, there is no signal on their phone. In fact, listening to only one side of a stupid conversation attracts our attention more than usual. Our brain is waiting for information from both sides of the conversation, and it will try to fill the gap. You can try sending some bad looks or old "polite coughs" to mobile braille, but these passive radical gestures rarely work.
If you really want to close the chat box, you need to buy a wifi jammer. What is "interference"? A WiFi signal jammer is a device that creates a temporary "dead zone" for all nearby mobile phone traffic. Police and the military often use cell phone jammers to control or disrupt communications during hostage hijackings and bomb threats. Traditionally, WiFi interference devices are large antennas mounted on trailers, which must be pulled behind the truck. They now come in a variety of shapes and sizes, including models that are approximately the size of a cell phone.
Most jammers have a range of about 50 to 80 feet and will not effectively interfere with your surroundings. Clumsy people just think that they have reached the break-even point of cell phone company coverage until they leave the crowded environment. Larger structures such as office buildings, movie theaters, and churches can be covered with more powerful high-power jammers. They look like various metal boxes with wires protruding from them and are usually mounted on a wall or ceiling.