Cell phone jammers, also known as jammers or cell phone blockers, are devices that interfere with other wireless connections transmitted via radio waves, such as cellular networks, GPS or WiFi. Depending on the model and power, the blocking range is from a few meters to hundreds of meters. The jamming equipment used by the military and government can even destroy radio signals several kilometers away. So, what is the specific purpose of the mobile jammer? In some rooms that need to be quiet or avoid interruptions, jammers become very useful. For example, it can prevent mobile phones from being disturbed by mobile phones during meetings or testing, students can use small technical tools to cheat, and can also be used to prevent mobile phones from being blocked by mobile phones during movie playback. Some retailers put the device in the corner of the store, blocking the mobile phone signal in the store, so customers cannot compare prices in the store by querying the network, thus increasing the retailer’s sales.
There is a lot of discussion about whether mobile jammers can be used in the classroom, some support and opposition. Some teachers and parents say that getting children to focus on their studies is really difficult. Some parents report that even if their children stare at their phones while eating, they cannot leave their phones at home, and they don’t have time to communicate with them face to face. It is important that parents do not dissuade them, unless they do not have a mobile phone, otherwise they cannot control them. A few parents and communities believe that placing handheld jammer devices in the classroom during class will not send signals to all mobile phones in the classroom. If an emergency occurs, it is impossible to contact the outside world in time. So is there a good way to solve this problem? You can use public telephones in the classroom so that when using mobile phone jammers, students can focus on the classroom and use public telephones to make emergency calls to 9-1-1 even in an emergency. Of course, if the measure can be legalized, the result will be better.
From targeting young drivers to monitoring older children and patients who need special observation, fleet tracking and asset tracking, various GPS tracking devices are available on the market to meet various needs. Of course, detectives often use these trackers. Real-time reports are monitored by the location, so they can be found at any time. Almost all cars on the road are equipped with GPS trackers, and these trackers are common for any purpose. The vehicle tracker can update the location of the vehicle every minute, including the direction and speed of the vehicle, the current address of the vehicle or equipment, etc., and can also be used to view or play the driving history of the vehicle. The tracker is small, cheap and easy to hide. It does bring people a lot of convenience to a certain extent, but not all tracking devices are used for the right purpose. Hackers can use GPS satellite technology to monitor your location. Some criminals will place tracking devices on the bottom of your vehicle or on the corners of your car. It will monitor your every move and achieve your illegal purposes.