Cell Phone Jammer:
The Complete

Cell phone jammers have been around for a few decades now. So, questions about their reliability have popped up often in the past few years.

Dark and dense clouds hover over these somewhat mystical gadgets due to their lack of press coverage and their minor presence in action-adventure games such as Batman: Arkham City and GTA V: San Andreas.

We’ll try to cover the mobile phone jammer topic from various different angles and recommend the best one for you, according to your needs. Let’s start with the basics:

What is a Cell Phone Jammer?

People from all over the world reach out to us in an effort to learn more about the so-called “cell phone jammer”, simply because there is not enough information on the internet or perhaps they never even heard about them before and stumbled across the term while playfully browsing the internet.

For the less tech-savvy, a cell phone jammer is a device that prevents cell phones from receiving signals transmitted by the antennas located on a cell tower, or more appropriately a cell site.

What it does is that it transmits on the same frequency as the nearby cell phone but it does that by sending a far “louder and more powerful” signal.
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Therefore, when you turn on a mobile phone jammer, its signals counteract all of the other signals in a given area. Hence, the cell tower will eventually be unable to communicate (send and receive) with the aforementioned device.

To make it easier for you to understand what a cellular jammer is, let’s picture this: you and your friend are talking to each other on the side of the road. Then, an ambulance passes by with a very loud siren. All of a sudden, you can’t hear your friend’s words and vice versa. In this scenario, you are the cell phone. Your friend is the cell tower. The loud ambulance is the jammer.

Basically, the deafening sound of the siren drowns out every word uttered by you or your friend. This is the simplest way to put it.

How Does a Cell Phone Jammer Work?

We'll have this professional gadget reviewer explain how a smartphone jammer works in the easiest way possible. He will give you different examples of scenarios where you can use a cellular jammer and see people's reactions when they eventually see the signal strength bars on their phones disappearing one by one.

Cell phone jammer review

Let’s be honest: cell phones, or more accurately smartphones, are all around us these days. They literally surround us. Even a 12-year-old carries a smartphone nowadays.

They are indispensable and universal. So many things can be accomplished with a simple $150 handset. Calling, video calling, messaging, banking, using social media are everyday, yet indispensable, tasks. But, we know very little about these excellent devices.

A cell phone is nothing more than a two-way radio. It works like (not exactly like) a walkie-talkie, which consists of a radio transmitter and a radio receiver.
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When you speak with your friend on your mobile phone, your phone converts your voice into an electrical signal, which is then transmitted via radio waves to the nearest cell tower. The network of cell towers then relays the radio wave to your friend's cell phone, which converts it to an electrical signal and then back to sound again.
A cell phone jammer blocks transmission between mobile phone and cell tower
As mentioned above, a mobile phone is a two-way communication device. It receives and transmits the signal in order to work. The signal strength is indicated by the number of “bars” on the notification panel on your phone. The more bars you see, the stronger the cell phone signal.

The connectivity strength, between a cell phone and its nearby cell site to which the cell phone latches on, depends on both inbound and outbound signals and is affected by many different factors. The distance between the cell phone and the cell tower and the number of obstacles/hurdles between them are some of the major factors that determine either a good or bad cell phone reception.

Incidentally, a poor reception (fewer bars) normally indicates a long-distance and/or much signal interruption between the cell phone and the cell tower. That’s why you struggle to get reception in your garage or in your basement. It’s much harder for the signal to penetrate these areas of the house.

Cell Phone Jamming Range Explained

Similarly, a jammer operates in the same way. Funnily enough, that’s where its weak point is.

A mobile phone jammer is unlike any other electronic equipment you find on the market. Its performance and efficiency depend heavily on the signal strength in a particular area.

E.g. a cell phone jammer with 1W of output power per channel can block cell phone signals within 10-30 meters, ONLY IF the cell phone signal strength in that location is either decent or weak (1-2 signal bars on your phone). If you receive full coverage (3-4 signal bars on your phone) in a certain spot, then a cell phone jammer with the same output power (1W) can only guarantee 3-10 meters jamming radius.

Sometimes it can even prove to be completely inefficient as the signal strength is way too powerful for a 1W jammer to handle. This is crucial to understand before you purchase one in order to avoid any complaints afterward.

Are Cell Phone Jammers Illegal?

This might seem the million-dollar question but the answer is fairly simple and it varies from country to country.
Well, the short answer is that in most countries cell phone jammers are illegal whereas in some others there is no specific regulation in place or official announcement from their governments.

Anyway, let’s look at some of the major countries that have prohibited the use of cell phone jammers for the consumers, with the exception of the armed forces.
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Are Cell Phone Jammers Illegal in The United States?

Jamming cell phone signals in the USA is illegal and it is seen as property theft under the Communications Act of 1934. Here’s the link for anyone who feels like giving it a read: Communications Act.

The FCC (Federal Communications Commission) explicitly prohibits the operation of any jamming equipment that interferes with authorized radio networks, such as cellular frequencies, PCS, GPS, and police radar.

The FCC states that cell phone jammers can stop you from dialing 911 or placing any other emergency call, therefore posing a serious risk to public safety. Operating one is a violation of federal law. Most of all, no exemptions apply. Not even for businesses, education facilities, or other agencies of the private sector.

Consumers aren’t allowed to operate a mobile phone jammer on the premises of their own homes. Local law enforcement agencies can get an exception under strict authorization by Federal law enforcement agencies. The use of a cellular jammer in The United States can result in a substantial monetary penalty (several thousands of dollars fine).

A notorious example of this is the Florida man who was hit with a massive fine for using a cell phone jammer on public transport with the intention of jamming fellow commuter’s signals because he couldn’t take it anymore.
Owning and using one can even lead to imprisonment. Although, this is a big one, as long as you use it in the privacy of your home or in your vehicle you should be safe.

What about other countries?

Well, most of the countries follow along with the same rules: monetary penalties and criminal sanctions are imposed on those who violate the law against the use of cell phone jammers.


The ACMA (Australian Communications and Media Authority) clearly states that it is illegal to use, supply, or have a mobile phone or GPS jammer or booster in Australia.

You are not allowed to use, supply, or have a mobile phone jammer as it “aids criminal and terrorist activity”. That’s the best they came up with.


India, unlike other major countries, has a specific regulation as it states that private sector organizations or private individuals cannot procure or use such devices in India.

The Cabinet Secretariat put up a ''jammer policy'' on its website, stating norms have been evolved for procurement and use of jammers by states/Union territories, defense forces, and the police.

Under the FTDR Act 1992, cell phone jammers are restricted items that can be procured upon producing a license from DGFT for importing them into India.

This is to “guard against the random proliferation of jammers as well as to ensure that cellular jammers installed do not unduly or inadvertently interfere with the existing mobile phone networks”, according to the policy.

United Kingdom

According to the Wireless Telegraphy Act 2006, anyone who deliberately interferes with wireless telegraphy, such as radio communications, is committing a crime.

If found guilty, you may be subject to a maximum of 2 years in prison and/or to a fine not exceeding the statutory maximum or to both.

OfCom warns that consumers are strongly discouraged from operating devices that mess with any radio communication as they may “cause you to miss a call and, at worst, they could smooth the path for criminal behavior or even put someone’s life at risk”.


According to the Radiocommunication Act, it is illegal to import, manufacture, sell, possess, and use jamming devices that disrupt the cellular frequencies in Canada.

You risk up to one year of prison or a fine of up to $5,000. Only law enforcement agencies are allowed to import radio apparatus that interfere with radio communications, according to the statement on ic.gc.ca.

Mobile Phone Jammer Application

Historically speaking, cellular jammers were originally built for deployment by law enforcement and the military in order to stop communications by terrorists. They were designed to stop cell-phone-triggered bombs. Basically, they could be rigged to detonate improvised explosive devices (IEDs) by remote control.

Technically speaking, two cell phones are used in this process: one phone calls the other phone, which then sends a signal to a circuit board attached to the bomb which then explodes.

However, nowadays cell phone blockers are used for the most disparate reasons and purposes. Civilians started using them from the mid-2000s as low-power cell jammers became available on the internet for as cheap as $300.

So, let’s take a look at some of the main reasons why the average person decides to purchase one.

Public Transport

It’s not easy to cope with pre-work or post-work stress and it’s much harder if you think that you have to hop on a bus or the subway and deal with all the yapping caused by rude and impolite fellow passengers.

Maybe you just need some peace of mind when you take a bus and not deal with the chaos. So you fire up your cellular GSM jammer and shut them all up and maybe have a few laughs when people around you look confused as to why the call was disconnected and can’t get reception.

Schools and Educational Institutions

Students and cell phones: the worst duo ever. Both of them combined can be quite a nightmare to teachers. Especially in middle school and high school, pupils are disrespectful towards educators and blatantly use their smartphones in front of them as if nothing matters.

Many college headmasters have reached out to us in search of an answer to combat this “plague” affecting their everyday lives in their institutions. The answer lies in nothing more than a simple portable mobile phone jammer.

The latter can be installed in every classroom without anyone noticing it is there. It can be hidden inside the teacher’s desk drawer or in a cabinet somewhere inside the classroom so that teachers can carry on with their lessons without ever being interrupted.

Workplace and Offices

Nowadays, employers have to deal with a huge problem in the workplace. Employees spend an enormous amount of time with their phones in their palms, wasting time on social media, or watching videos on Youtube.

We have received many many requests from employers looking for a solution to tackle this issue. The cell phone jammer is the answer.

As employees tend to fool around when they should be working, that’s where a desktop jammer like the B88 can come in handy. The wider jamming range can shield an office space of up to 20-60 meters, which is pretty awesome.

Places of Worship, such as mosques, churches, temples, etc.

Some fellow worshippers blatantly ignore the “turn off all cell phones or put them on silent mode” sign when entering their places of worship. As an esteemed member of the masjid or church, you might feel powerless against these ignorant worshippers and feel like there’s nothing you can do about it. But that’s not true.

You can opt for the high-power desktop jammer Eagle in order to disrupt cellular frequencies in the whole building and avoid any interruptions. So that the imam, priest, or rabbi can carry on with the mass and deliver it seamlessly, which is a lot to ask for these days.

In case the place of worship is seemingly small or medium-sized, then you can go with the portable 8 bands jammer Raptor.

When the mass is being delivered or the congregational prayer is being performed, you can power it on. When everything is over, you can then power it off. Simple as that.

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Prisons and Correctional Facilities

Another location where cell phone jamming devices are greatly needed is prisons or jails. Illegal smuggling and the use of cell phones have increased exponentially over the last couple of decades and the demand for our products has increased over time.

Inmates with cell phones pose a serious risk and jammers could help combat this danger. Cellular jammers installed in every wing of a correctional facility can reduce prisoners’ ability to communicate unsupervised with the outside world.

Plus, they can put an end to their criminal efforts as many studies and prison officials have suggested that mobile phone usage is deemed the No. 1 security threat.

US state prisons are on their way to adopting the use of these devices as endorsements are coming from the Department of Justice who allegedly stated that reports prompt federal action to stop the illegal communication that’s fuelling gang violence and allowing prisoners to further their criminal enterprises while locked up.

Movie Theatres & Restaurants

Aren't you sick and tired of people yapping on their mobile phones disrupting the silence while you are enjoying a nice movie or a meal with your family? How many times have we witnessed these same scenes over and over again?

You start losing your mind when you hear a cell ringing inside the cinema. Let alone what happens when that person answers the call. Your face turns red from the anger due to the blatant disregard for polite social conduct.

Both cinema theatres and restaurants must adopt electronic gadgets such as cell phone jammers so that every polite human being is not disturbed by other rude ones.

It's all about peace and calm when all you wanted was just a simple Friday or Saturday night out with your loved ones. If the call is so damn important, then they can still stretch out their legs and go outside and come back when the call is over.

Are Cell Phone Jammers Hazardous to Our Health?

It depends. Research conducted so far suggests that there is little to no evidence to support this claim. In some mature rats, the effects of exposure to electromagnetic fields of mobile phone jammers led to a visible difference in some blood factors whereas the same were not altered in immature rats. A jammer’s radiations had no effects on the latter sample of rats.

Thinking logically, any source of EMF (electromagnetic field) such as cell phones, laptops, etc. affects human health. It is safe to believe that jammers do the same as they emit radiation and create a bubble all around them. But the health consequences are minimal as long as output power is low or medium.

However, there is this interesting research that shows that exposure of human sperm samples to radio-frequency radiation emitted by a mobile phone jammer adversely affects sperm quality. The semen samples taken into account saw a decrease in their motility and an increase in DNA fragmentation.

Another rather curious study has revealed that constant exposure to satellite jamming may have side effects on human health and can even increase the risk of developing some types of cancer.

However, the WHO (World Health Organization), based on scientific research, has claimed that current pieces of evidence don’t confirm the existence “of any health consequences from exposure to cell phone jammers and low-level electromagnetic fields.”

So, you see that there are pretty confusing opinions and there are no conclusive studies to corroborate the fact that low-medium levels of exposure to EMF can affect human health negatively.

It’s a totally different kettle of fish when bomb jammers are involved as they are high-power warfare equipment emitting powerful radiations. They normally have a very high output power which could be hazardous to human health if there is constant exposure.

Do Cellular Jammers Affect Pacemakers and ICDs?

If you are suffering from arrhythmia, it means that you suffer from any disorder of the heart rate or rhythm, which basically means that your heart beats too quickly, too slowly, or with an irregular pattern.

If your arrhythmia is in serious condition, you may need a cardiac pacemaker or an implantable cardioverter-defibrillator (ICD). These are devices that, implanted in your chest or abdomen, can help control abnormal or irregular heart rhythm.

In that case, you might be wondering whether a cell jammer would cause your pacemaker or ICD to not operate properly.

Since mobile phone jammers operate by sending a slightly stronger signal on the same frequencies used by cell phones, if you're not bothered by being around people on cell phones, then a cell phone jammer should not be a problem at all.

Do Cell Phone Signal Jammers Block Emergency Calls?

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This is a common misconception. A lot of folks tend to believe that mobile phone jammers do block emergency calls in case of crucial emergency situations. They couldn't be more wrong.

Did you know that your regular smartphones can still make emergency calls even without a sim in them? That’s how most phones are designed so that in case you’re in trouble and there’s no connection to your registered network provider, you can still call 911 and other emergency services.

As a precautionary safety measure, you are always able to connect to an emergency service. It's a standard internationally implemented. For example, in The US and other countries, there is a law that requires that, even when completely out of service, cell phones must be able to make emergency calls.

Similar to a roaming service when you are abroad, your phone is allowed to connect to any other network available to place an emergency call. 911 in the US, 999 in the UK, and 112 in Europe WILL override any roaming list, or non-registration, and will force the phone to attempt to connect to any network it can pick up.

The basic understanding is that if you have a cell phone, ALL providers must accept the 911 call and forward it to the call center. Mobile phones are designed to permit calls to the local emergency number using any available and compatible network, even if not subscribed to a provider (i.e., via SIM card for GSM phones).

Since most jammers emit low power signals, the following frequency bands will still be able to communicate with the cell phone tower and won't be blocked (in most cases), no matter what:

  • Police bands
  • EMS bands (emergency medical services)
  • Fire service band

Cellular Jammers Can Prevent Adolescents From Negligent Driving

8 band mobile phone jammer

This is an issue that a lot of parents deeply care about. Knowing there’s your son or daughter behind the wheels is always going to worry you. Most accidents nowadays are due to distracted driving by cell phone use behind the wheel. The number of deaths caused by distracted driving is staggering.

A cellular jammer, installed in a vehicle, that auto activates as soon as you hit a certain speed limit would substantially help curtail these figures and allow a more accurate and careful driving. No more Facebook or Instagram; no more WhatsApp messages while driving. We could all be a little safer on the roads.

Taking everything in this article into account, it is pretty clear that we are in favor of the legalization of cell phone jammers for sale. There is a massive interest by the public and their use has increased over time even though they are illegal. In this technological world, the need for such devices cannot be ignored.

The demand exceeds our expectations and more and more people turn to us looking for a solution to tackle this never-ending problem called “cell phones”.

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