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The installation of equipment to prevent prison calls meets very strict standards in order to avoid interference with communication networks outside the prison. signal jammer are designed to disable phones in certain areas. They block reception and mobile radio waves, which will prevent communication between mobile devices and relay antennas. But smartphones are the real killers. Recent statistics on the use of mobile phones while driving indicate that more than 20% of fatal car accidents are caused by inappropriate use of mobile phones. Hundreds of people are killed and injured every day around the world due to the use of mobile phones while driving. Cell phone jammers are only a good way to force the prohibition of cell phone use while driving.

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gps jammer are small and useful devices that are definitely useful to many people. Its main purpose is to block signals from GPS tracking equipment. If you are concerned that someone is following you or you just want to use a GPS blocker when you need it, there are a few things you should know about these devices. One of the main things you should check when purchasing a GPS blocker is how often it works. Generally, GPS tracking devices can operate in the GPS frequency band L1 or sometimes at other frequencies, so it is important to know their frequency.

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An interfering device is a device that emits radio waves, and its frequency band is the same as that used by a mobile phone. Therefore, it is not possible to use a mobile phone or the like where the device is installed. After the signal shielding device is installed, the mobile phone will not be in service and you will not be able to make or receive calls.Due to the rapid development of electronic communication means, cheating seems to be more and more diversified. The use of mobile phones or small headphones to cheat and passed in the test, and this cheating phenomenon is very common.

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Mobile phone syndrome refers to people who use mobile phones excessively. To curb excessive use of mobile phones, we can use a gsm jammer. The main performance is: take out the phone every once in a while or even a few minutes to see if there is new information or missed calls;once you hear the phone ringing next to you, you would look at your mobile phone in conditioned reflex ; more seriously, if you can't hear the ringtone for a long time, you will have an inexplicable irritability, and your mood will be low. Patients with cell phone syndrome are often anxious, sensitive, and emotionally nervous.

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Faced with the gaps in drone control, take strong countermeasures to ensure air safety, such as the use of drone interceptors to shoot down drones by the government or police, purchase drones for real-name system, and so on.Among the accidents involving "drones" in the "Kobihi" accident, there were hundreds of accidents in the second half of 2016 alone, such as the drone crashing into the scene of a large event, affecting normal civil aircraft flights, and even a flight in Canada There was an accident, and there was an injury to the Ningbo Kuruobi Expressway.

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Keeping your body in the radiation of phones for a long time will affect the body's various organs and bodily functions, and even harm reproductive function, so it is necessary to use portable jammers. For example, staring at the screen of mobile phones too long will cause eye fatigue, dry eyes, blurred vision, pain in the eyes, decreased vision, etc. While when the posture of the mobile phone is wrong, it will cause fatigue of the arm muscles, fatigue of the limbs, sore neck and so on. The emergence of smart phones has indeed brought us great convenience, but when people enjoy the convenience provided by mobile phones, they often overlook the negative effects of using mobile phones for a long time.

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