Here you can find your own jammer

The second way to protect your car is to use modern multi-frequency car alarms that always use different frequencies. This makes it very difficult for thieves to intercept these signals. Other types of modern alarms generate different codes every time you lock and unlock your vehicle. Even if a thief gets the code and cracks it, they will not find anything. Today, such protected car signal jammers for sale are very popular and expensive, but they can protect you.
The accuracy of the IndoorAtlas technology used in modern buildings is 0.1-2 meters. Moreover, the technology does not require any additional hardware on the smartphone and can work alone or precisely cooperate with other indoor installation systems to achieve higher positioning accuracy. However, before using indoor location data on smartphones, developers must collect magnetic field data and overlay it on each floor plan. To do this, developers must create a floor plan image of the location and navigate the entire site while collecting magnetic field data. However, IndoorAtlas makes these steps easier by providing users with a practical online toolkit. In the north of the world, there are other companies such as Walkbase and Qubulus that have developed their own location positioning solutions based on precise positioning using wireless Wi-Fi networks. Both companies offer interesting location solutions, but IndoorAtlas stands out because it approaches the problem from a new angle.
Microsoft, Sprint Nextel, Facebook, and Google are among the companies asking lawmakers to amend the famous Electronic Communications Privacy Act to comprehensively protect online content, mobile data, and location information. "As wireless access to our information becomes easier, there is no reason for the government to go to such lengths to obtain wiretap warrants, and we are also looking for ways to: not use audio of recent communications, such as emails and text messages," CCIA attorney Ross Schulman said in a blog post. AT&T wrote that law enforcement surveillance requests affected 0.25% of wireless users last year, assuming that every request was made against another user. That's an increase of 0.18% from 2007. Unlike Verizon's data, theirs includes data provided to 911 callers. AT&T also said that hundreds of full-time employees are responsible for reviewing and responding to all law enforcement surveillance requests.
There are multiple iRobots with multiple different gps blocker for car. They may be touched or bumped by someone or something, thus having a different perception of the two things. Based on the sensors, the robot reacts. The robot can also react to sounds and differentiate based on the volume. There is also an iRobot Roomba that can identify obstacles to avoid (such as walls and stairs). iRobot also makes a small robot that looks similar to the Recon Scout XT and behaves similarly to ReconRobotics. Soldiers can put it in their pockets, throw it into a building, and use it for remote surveillance. Or, the robot can extend its "neck" so that the camera is 8 feet above it to monitor high walls or fences. Or there is another robot small enough to move under the door like a worm with a miniature camera.
Jammers evolve into military weapons
Jammers are one of the best tools for blocking signals. With the development of science and technology, jammers have evolved into military weapons and are widely used on the battlefield. Washington - Russian troops have blocked several US military drones over Syria, four US officials said, which seriously affected US military operations. Officials say Russia began jamming some small U.S. drones a few weeks ago after a series of suspected chemical weapons attacks in the rebel-held Eastern Ghouta region. Officials say the Russian military feared U.S. forces would respond to the attack and began jamming the GPS systems of drones operating in the area. "Russia wants to turn around and destroy our interests," Senator Ben Sasse said in a rush in response to Tuesday's Russian news. Todd, director of the Radio Navigation Laboratory at the University of Texas at Austin, said Dr. Humphreys said jamming is very easy and it involves blocking or interfering with the drone's reception of GPS satellite signals.
I am glad to say that I should be free to continue my appeal, President Jacob Zuma said in response to this week's parliamentary debate on the State of the Nation Address. Sitting here, in a dark corner of Redwood Ridge, holding tight like the president, we often insult those who try to disturb us with false nonsense. But beyond that, Zuma urged the government to respect Section 16 of the constitution. This is part of the guarantee of our freedom of association, speech and media. This shameful and unfair attempt to block our phones was made after a promise was made in front of SONA.
“The security team resolved and clarified the GPS jammer with House Signal Distribution last Thursday,” Mr. Zuma said to applause.
A company called CellAntenna continues to try to exploit the problem of cell phone smuggling in prisons to expand its product line. Unfortunately, many people (especially prison wardens) want us to believe that new technological tools can solve our problems, so they continue to gain momentum. A group of prison wardens not only filed a rulemaking petition with the FCC, but also supported a bill asking the FCC to allow cell phone jamming in prisons. For general information about CellAntenna, you can read about how to profit from prison security loopholes and why this is not a good idea at Cellantenna. In addition, we have sent this letter (press release here) to President Rockefeller and senior settlement members in preparation for tomorrow’s Senate hearing on this issue. We have also scheduled an extra five minutes of Harold Feld’s time to briefly explain why this is a bad idea.

This form of jamming can be easily circumvented, and although autopilots are available, they are currently incorporated into the drones on the market and cannot be shielded by jamming systems that are owned by the manufacturers. Might this suggest an undisclosed collaboration with drone manufacturers?
The practice of indiscriminately transmitting large amounts of continuous wave (CW) power is the least effective method of jamming and is therefore infrequently utilized. In contrast, tailored jamming systems that employ specific modulation techniques to hinder the demodulator of the affected receiver are far more effective, often utilizing high peak pulse power at key demodulation frequencies. Additionally, a more advanced strategy involves interfering with systems external to the receiver, such as delivering modulation that disrupts computer data processing.
Military and government organizations often utilize Wi-Fi RF cell phone blocker, which can incapacitate a wide range of drones, from hobbyist models to commercial and rudimentary terrorist types. These devices are designed to interfere with Wi-Fi connections for users nearby, but their impact is generally limited to a short distance, with signals returning to their point of origin.
If the drone continues its trajectory toward the stadium following the activation of the Wi-Fi jammer, the potential for a serious threat escalates considerably. The next course of action is to engage a GPS signal blocker device to obstruct the smartphone signal shielding of the drone. However, it is crucial to recognize that car gps jammer can also interfere with cellular towers and emergency communication systems, so their use should be reserved for situations where wi fi jammer prove ineffective. This technology is already available for use by sanctioned organizations.
According to South Korean government officials, a sabotage operation that began in late March was directed at aircraft navigation equipment. North Korea is said to have emitted jamming signals 100 times, affecting a total of 962 aircraft and nearly 700 fishing boats. Additionally, the jamming disrupted cell phone base stations.
Employing cell phone jammers can effectively diminish the detrimental impacts of mobile phone usage. As children are in a vital stage of development, early interaction with mobile devices can greatly influence their physical and mental health. Therefore, we suggest utilizing mobile network jammers to safeguard children from harmful emissions and support their healthy development.

The use of GPS tracking technology allows for the accurate localization of your vehicle on a global scale, serving as an excellent measure against vehicle theft.
If a vehicle is stolen and contains a GPS tracking device, the owner can easily track its location and immediately report the details to the authorities after the theft.
With access to GPS data, the police can quickly launch an investigation, facilitating the swift recovery of the vehicle and the prompt resolution of the theft.
GPS tracking devices gather data related to the location where vehicles are stored, their current operational status, and occurrences of unauthorized use, which can be leveraged to optimize vehicle management and operational practices.
Today's GPS tracking devices are increasingly diminutive, provide superior accuracy, and are suitable for various applications.
What types of GPS tracking devices are there and what are their features?
GPS tracking devices can be divided into two main types: "real-time" devices that facilitate the immediate tracking of your vehicle's location, and "log type" devices that permit the downloading and examination of data at a later date.
The real-time functionality provides you with constant awareness of your location and allows for immediate tracking of your vehicle should it be stolen.
Another possibility is to observe vehicle speed, engine status, mileage, and additional factors in real time.
The log type permits the future assessment of the data logged by the GPS tracking device.
Although this approach does not enable real-time identification of the vehicle's location, it permits the accumulation and analysis of location data over time, which can reveal the vehicle's operational history, driving paths, and total distance traveled.
Each type has its own specific functions and available options, yet they fundamentally share the capability to receive signals from GPS satellites for the purpose of determining location information.
Various communication methods include 3G, 4G, LTE, Wi-Fi, Bluetooth, and optionally, microwave technology.
A jammer-compatible GPS tracking device is required

• A GPS tracking device that features jammer functionality is required, given that GPS jammers are illegal devices that interfere with GPS signals, and they are sometimes used by unethical car thieves.
  


• A GPS tracking device featuring jammer capabilities can sense disturbances in GPS signals and respond rapidly.
  


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The tracking of a stolen vehicle will persist even if a jammer is used during the tracking operation.

Ensuring the prevention of vehicle theft holds significant importance.
The prompt recovery of a stolen vehicle can lessen the extent of losses incurred and play a crucial role in preventing subsequent thefts.
A jammer-equipped GPS tracking device demonstrates exceptional tracking performance, capable of providing accurate location details even in locations with inadequate GPS signals, which significantly increases the effectiveness of stolen vehicle recovery efforts.
The popularity of GPS tracking devices with jammer functionality is on the rise, given that signal jammer can provide car thieves with an extra advantage.

Mary Jane had previously taken steps to prevent their use, including buying cell phone jammers, devices that cut off service. He said the device is considered illegal, but no one in the United States has been charged with owning such a device. When buying the signal jammer, he talked to nearby teachers, who were fully supportive. The jammer was older and less effective. At best, it could only block 3G signals, and students with smartphones could still use WiFi. So I bought the latest multi-function jammer.
The school installed cell phone jammers in the dormitory building. This is an act of internal control, which is a good thing. Nowadays, most mobile phones are smartphones. Many students stay up late to play with their phones. The next day's class is very spiritless, affecting learning. After installing the jammer, students will not stay up late and will be more spirited the next day.
Almost every student in the school now has his or her own mobile phone. What's worse is that mobile phones have become a "weapon" for many students against teachers. During the course of teaching, we found that most students use their mobile phones to surf the Internet. Many students tend to listen to music or play video games in class. I often talk in class, and my mobile phone suddenly rings, and I get distracted. Worse still, some students use their phones to help them cheat on exams. It has been reported that the new phenomenon of "cyberbullying" refers to students using text messages and social networks to electronically torture others while listening to lectures.
So you need a phone jammer
Since classrooms are usually small in size, we recommend using a 3G/4G phone jammer, which is very convenient to carry and use. Just press a button to turn it on. Of course, you don't have to worry about emergencies where someone needs to make a call. They can walk out of the classroom to make a call without disturbing others. Or, you can turn off the jammer device only when needed. If you have a small space, you can buy a handheld jammer, and if you have a larger space, you will need a desktop jammer.
Interference Signal Attenuation
The signal strength of the wireless signal gradually attenuates during transmission. Since the receiver can only receive and identify wireless signals with signal strength above a certain threshold, if the signal is attenuated too much, the receiver will not be able to identify the wireless signal. The following are some of the main common factors that affect signal attenuation.
When electromagnetic waves propagate through the air, the signal strength gradually attenuates and disappears as the transmission distance increases. The attenuation in the transmission path is the path loss. Although it is impossible to change the air attenuation value or transmit wireless signals by avoiding the air, the transmission distance of electromagnetic waves can be increased by appropriately increasing the transmission power of the antenna end and reducing obstacles. The farther the electromagnetic wave propagates, the larger the space that the wireless signal can cover.
Obstacles are most common in wireless network environments and have a significant impact on signal attenuation. Different walls, glass, and doors in daily environments have different degrees of signal attenuation. In particular, metal obstacles can completely block and reflect the propagation of wireless signals. Therefore, in the process of network planning, various obstacles that block APs must be avoided.

In modern life, radio waves play a crucial role. They support Internet use on smartphones and computers, and many gadgets like TVs, radios, GPS, and microwaves depend on them to enhance our experiences. Yet, radio waves can also be used in negative ways, such as using phones during performances or spying on conversations. Recently, radio wave jammers have become more known. While some may have heard of them, many might not understand their function or how accessible they are.
Since our shop used to deal with radio wave jammers, we will explain them in detail.
What is a radio wave jammer?
The formal name for radio wave jammers is communication function suppression device. This equipment interferes with or stops radio waves from devices such as smartphones, GPS, Wi-Fi routers, and computers, making it impossible for these devices to communicate.
The way it functions is by broadcasting radio waves that match the frequency of the electronic device, causing the device to stop receiving its intended signals.
What is it good for?
Nowadays, there are very few places around the globe, including the U.S., that lack radio waves or electronic devices. Many people rely on gadgets like smartphones for communication. This is generally beneficial, but it can become a problem when these devices are used where they shouldn't be.
It is inappropriate to use wifi jammer in locations such as offices, testing areas, hospitals, and concert venues. Their use in these settings can help maintain proper etiquette by preventing electronic devices from connecting and limiting their activity. Additionally, some people aim to block signals from unauthorized GPS, hidden cameras, and listening devices to safeguard against harassment or tracking. We will clarify in the next section whether this is actually possible.
Is the jammer sold online?
It is inappropriate to use camera blocker in locations such as offices, testing areas, hospitals, and concert venues. Their use in these settings can help maintain proper etiquette by preventing electronic devices from connecting and limiting their activity. Additionally, some people aim to block signals from unauthorized GPS, hidden cameras, and listening devices to safeguard against harassment or tracking. We will clarify in the next section whether this is actually possible.
While it seems challenging for people to operate, I have seen online stores offering jammers. They can be used because the jammers produce a weak interference signal. Some may wish to use them, but since they only send out weak radio waves, they don't block signals well.
When the radio waves are similar, such as smartphone or Wi-Fi signals, other devices in the area will struggle to communicate. This will also affect your electronic devices, preventing them from connecting.
Nowadays, we can't picture life without radio waves. Using a laser jammer can make your neighbor's electronics fail, even if you see that as a benefit.
It's straightforward to obtain permission for security cameras because they don't affect everyday life much. On the other hand, getting permission to stop radio waves is challenging, making electronic devices almost unusable.

The Ukrainian military is thoroughly jamming the radio waves of Russian military drones on the left (eastern) bank of the Dnieper River in the country’s southern Luzon province.drone jammer
Because of this radio jamming, Russian troops on the left bank have been unable to repel a small contingent of Ukrainian marines that have been stranded in the fishing village of Kelinki since mid-October last year. The Ukrainian think tank Center for National Defense Strategy said
The Ukrainian military “is deploying drones in large numbers near Kelinki.” “Electronic warfare units are interfering with the use of enemy drones.” In December, Ukrainian and foreign media reported that the battle in Kelinki was tantamount to a “suicide mission” for the marines of the 35th Brigade of the Ukrainian Army. But in reality, it was the Russian troops who suffered heavy casualties, including soldiers from the 810th Marine Brigade, the 104th Guards Airborne Division, and its army units. signal jammer
The Ukrainian military's explosive-equipped quadcopters (aircraft with four rotors) come in two types: self-destructive first-person view (FPV) types and reusable bombing types, such as the large Baba Yaha, which flies at night. At the same time, Russian military drones are often unable to take off due to radio interference by the Ukrainian military.
"Ukrainian military drones are aggressive and operate in groups," Russian war correspondent Alexander Sladkov said on social media. "The enemy uses FPV drones to attack Russian military vehicles, weapons and infantry units, and has no trouble targeting our roads and positions with artillery, putting us in trouble and danger both on the front line and in the rear," he wrote.
"At night, large drones drop mines on our roads, hindering the movement of our troops," Sladkov said. "We are ready to engage in air battles with Ukrainian troops within the range of enemy drones, but are hampered by large-scale electronic attacks."

As a woman, have you or someone close to you experienced being stalked?
Have you seen such news? Nowadays, the development of technology has brought a lot of convenience to our lives, but it has also provided opportunities for bad guys and criminals. We often see such social news on the Internet or in newspapers. I have not had such an experience, but I have indeed seen a lot of similar news.
In late February, a man in Nagoya was arrested by Aichi Prefectural Police on suspicion of violating the stalking control law after installing a satellite positioning system (GPS) device on the car of a female acquaintance and monitoring her movements. During the police interrogation, the man reportedly admitted to the charges and said, "I like women."
According to reports, from September last year to February this year, the man secretly installed a GPS device on the light passenger car of a woman he met online and monitored her, making it look like he was monitoring her every move online.
To be precise, if you install a GPS device on someone else's car and then post on the Internet that you are monitoring their behavior and let the victim know, you may be charged with a crime. ”
Is it not a crime to install a GPS device?
“In fact, under current laws, the act of installing a GPS device on a car is not punishable.
GPS jammer At this time, the role of the GPS jammer comes into play. One day it will interfere with the GPS placed on your body, making it unable to detect the signal, so that people with intentions can get your location information, thereby protecting yourself. Make sure you will not be caught. A woman radio jammer I think it is very necessary to buy. Moreover, it is a small mobile phone and the price is not expensive.
We know that it is a GPS positioning device, and by using this product, we can clearly know where we are. GPS has many uses, including navigation. However, you know, there are many bad guys who use it to do inappropriate things. Being tracked poses a threat to property and even personal safety.
GPS determines your location by detecting three or more geostationary satellites, but in order to know your location remotely, you need to check the location of the mobile phone and superimpose it on the map, so you need to turn off your GPS mobile phone jammer. When the mobile phone is turned on, the location of the relay station on the mobile phone can be known, so the location information cannot be deleted unless the mobile phone or the relay box installed on the vehicle is turned off.
There are many GPS tracking apps (current location tracking function) on smartphones. Even if they are installed on a computer without permission, the parties often don't notice, it's like someone is constantly monitoring their behavior. GPS jammers protect your privacy from GPS tracking apps.
For example, if you put a GPS phone or location search device in the car of your husband, wife or lover (just put it in the trunk, inside the car or behind the bumper!), you can track the location of the car using your computer or phone. You can search for your current location. GPS radio wave blocker If you rush to the searched location and search, you can find your car within a radius of 20m. You can also find the vehicle in the hotel parking lot. If a person says they are going out with someone, but their car location is detected, you can tell if they are lying.
If you want to block GPS, you can go into an underground parking lot or a multi-storey car park, but if the company finds that there is no GPS activated, the company will ask you where you are, and you have to answer if there is no, remember that it is not illegal to be "fired".
Some people say that people should have the right to buy jammers, and VIP people can use these products to prevent illegal tracking. Freight companies usually use GPS trackers to operate, but mobile phone jammers prevent their bosses from monitoring them. It is also a tool for criminals (not to be expanded here). For prisoners abroad, it is a way to get rid of shackles and surveillance.
The source familiar with the internal affairs of the Ministry of Defense said that these devices have the ability to monitor and interfere with the control signals of "drones". However, there are currently no laws regulating GPS jammers, so there are apparently many very small jammers sold online that can be used by simply plugging them into the cigarette lighter socket. Judging from the photos, it seems surprisingly simple inside. The jammer interference makes it impossible to receive GPS signals, so encryption cannot be used to process them. It may be more effective to wrap aluminum foil around the antenna so that it only receives signals from the sky.
For personal safety and to prevent being tracked by bad guys, I think it is still necessary to buy a GPS signal interrupter.

Blocking remote key communication (lock interference) refers to the act of deliberately interfering with communication when the vehicle's remote key is used to lock the vehicle.
Some malicious individuals and organizations attempt to block the lock by using certain devices and techniques to disrupt the communication between the remote key and the vehicle.
Lock interference techniques include using jamming equipment to interfere with the radio waves of the remote key, and stealing and retransmitting the remote key's signal through a technique called a replay attack.
This means that even if the owner thinks the vehicle is locked, it may not actually be locked correctly.
Lock interference increases the risk of theft
Although high-speed, interference-free wireless LAN standards have become popular, many people still use the 2.4GHz band 802.11g standard wireless LAN (Wi-Fi). This will reduce the situation where you receive radio waves not only from your home, but also from neighboring houses. Wifi jammers have been determined to be emitting powerful broadband radio waves. It continues to interfere with mobile phone signals. I wonder what the radio wave blocking ability is.
The mobile phone suppression device system blocks communication by emitting weak radio waves of the same frequency as the broadcast information radio waves from the mobile base station, and prevents the subsequent display of location registration and polling from being "out of range" and communication. Will be suppressed. The purpose is to provide a GPS jammer that can reliably suppress the communication function of mobile phones and easily meet the standards stipulated by the Japanese Radio Law. This is the interference wave to be suppressed.
Radio jammers, GPS jammers, text blockers and other devices designed to intentionally block, interfere with or disrupt authorized wireless communications. Over the years, I have used mobile phones in movie theaters many times. In the middle of the movie, people's phones rang. If you use a GPS jammer, you don't have to worry about such rude behavior. Just as you as a parent have the ability and right to disconnect the Wi-Fi at home, you should also have the option to cut off the mobile phone signal when necessary.
This means that even if you are tracked or monitored by the car navigation system or GPS logger, you can get away by jamming the GPS. It can be said to be a product with a wide range of applications.
If you think that just because your car is equipped with a GPS system, you can get it back even if it is stolen, it is not the case. Thieves also understand this. They can use GPS jammers to block tracking systems.
Of course, even if it is banned, you can still buy it from online stores. GPS jammers used for vehicle theft can also be purchased online.

With the rapid development of science, the phenomenon of cheating in important exams in life using wireless communication devices such as wireless headphones and mobile phone terminals (including smartphones) is increasing. Exam organizers have adopted various methods to deal with this phenomenon, but today I would like to introduce a very effective anti-cheating device to everyone. This machine is a signal blocker that blocks communications such as mobile phones. The device emits interference radio waves in the same frequency band as those used by mobile phones and PHS, impairing the radio wave conditions received by mobile phones, resulting in the inability to use mobile phones near the device.
In one hall, a concert of a famous conductor was even interrupted. For this reason, theater operators and other theaters are currently strongly demanding the development of effective countermeasure technology. The frequency band range allocated to mobile phones, smartphones, etc. is not just a part of the frequency band, but a certain range, so how can a certain device interfere with radio waves in various frequency bands?


For those who want to crowd in as wide an area as possible (hall, waiting room, etc.). Most mobile phones and GPS devices have a probability of more than 98% that they can be taken out of range. It has the highest output of all general radio wave jammers currently on the market. Protect your privacy by preventing peeping and eavesdropping. In Japan, blocking radio waves without the permission of the Ministry of Internal Affairs and Communications may violate the Radio Law. However, customers need some useful information when buying a jammer, but it is not just general explanation information about how to use and where to apply it.
If you rush to the place where the wifi signal is blocked and search, you can find the car within a radius of 20m. You can also find the vehicle in the hotel parking lot. WiFi is a very convenient way to share files, videos and music at home or in the office. In addition, wireless LAN is also easy to set up and use in daily life. However, there is a major disadvantage. You can share information with friends and colleagues, but that information can be easily stolen. Therefore, wifi jammers make your data sensitive to privacy and personal interests
Isn't it possible to catch the culprit just by setting it up? I want to make a mobile phone jammer that can put my mobile phone out of signal range. If anyone knows the circuit diagram or has already made one, please tell me how to make it. I will not use it for pranks. It is just an experiment. I once asked the police about the jammer, and a lawyer I know said that it is difficult to arrest them unless the jamming radio waves are detected on the spot, that is, unless it is proved that they are being used at the time. Even if you are caught on the spot, the police can only give you a verbal warning.
It's been almost a month, right? The signal where we live is very poor, and it is difficult to surf the Internet and make phone calls. At first I thought it was a problem with the phone. "My name is Mr. Wang, and I live in Xincheng. According to the warehouse owner, "I bought this jammer to interfere with the GPS signal of the mortgaged vehicle, but I didn't expect it to cause trouble to the neighbors. I'm really sorry." said.

The most widely used mobile phone standard is our GSM global system for mobile communications. GSM standard equipment accounts for more than 80% of the current global mobile phone mobile communication equipment market. Although commonly used, you may be most familiar with the use of mobile phones. Yes, calls and text messages rely on GSM to provide stable network data types. But there is much more to the GSM network than we know. Powerful mobile radio uav jammer are one of the guidelines that many electronic manufacturers are familiar with and carefully studied. GSM modules are used in many areas of life, generally used in access control security systems, as well as GSM network car security systems and robots.
GSM also supports indoor coverage. Outdoor antenna power can be distributed to indoor antenna distribution systems through a power divider. This is a typical setup that meets the requirements of high-density calls within the home, and is common in shopping malls and airports. Indoor coverage can also be achieved through wireless signals throughout the building, thereby improving signal quality and reducing interference and echo.
Why do you need a jammer?
GSM is the basic network frequency band for mobile voice communications and SMS services. As we all know, improper use of mobile phones is a serious phenomenon, and using mobile phones in public places will bring a lot of noise to others. When you are reading or relaxing quietly, someone suddenly calls loudly to disturb you? I think so. When we need quiet, we don't want to be disturbed.
The GSM network band is very important for the use of electronic devices. Therefore, in many places where mobile phones are prohibited, jammers are installed to interfere with the basic communication of mobile phones. This is also called GSM interference.
Buying a GSM jammer requires shielding signal types, such as whether you need to shield 3G and 4G network bands in addition to the GSM network. In this way, you can buy a mobile phone jammer, which will block all mobile phone signals. In addition, since you have purchased an electronic jammer, you need to consider where to use it. Portable jammers are convenient for indoor and outdoor use, while desktop jammers use a multi-antenna design. As the name suggests, not only personal use will be more extensive, but also large places such as prisons and courts will use it, with a wider interference range and more types of signal shielding.
I personally recommend an 8-antenna portable GSM jammer to meet your needs. It is enough to provide a quiet reading environment when you need quiet. For enterprises and important institutions, a powerful multi-antenna desktop jammer would be your better choice. This is important in terms of functionality and interference radius, and is sufficient for large-scale applications.