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Buy 3G 4G 5G Cheap Cell Phone Jammers DIY for Sale

Cell Phone Jammers 8 Bands Handheld 2G 3G 4G LOJACK

This device is suitable for classroom, meeting room, library, movie theater and other places where need to keep quiet. Due to its small size and easy to hide, the device is popular with teachers and administrators. As the most popular portable mobile phone jammer, this product has a small size, easy to carry. Can block 8 frequencies, and have a very large jamming range. With a separate frequency control switch, you can select the frequency range that needs to be disturbed as needed. With car charger, can charge the battery in the car

$308.69 $584.48

EO-10 High Power Military Cell Phone GPS WiFi Lojack 433/315/868MHz Jammer

As the newest military-grade product, the advantages of this cell phone signal jammer are obvious. It has the characteristics of large jamming range and multiple jamming frequencies bands. It can block all cell phone signal(GSM/CDMA, 3G, 4G, 4G LTE), Lojack, GPS, WiFi, Walkie-Talkie UHF/VHF and RF signals like 315 MHz, 433 MHz, 868 MHz.

$601.00 $1036.20

Mini Hidden 8 Bands Portable Pocket Cell Phone Jammers 2g 3G 4G GPS WIFI Signals

This mini small jammer can be used in conference rooms, conference rooms, museums, art galleries, theaters, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, buses, etc.It needs to be quiet and confidential And information security.

$349.99 $679.99

All Mobile Phone Signals Jammer 5 Bands Handheld

This is a portable multi-function portable cell phone jamming device. It can interfere with major mobile phone signals, such as 2G,3G,4G and other signals, as well as WIFI and GPS signals. Has independent frequency band switch, you can turn on the corresponding frequency band for interference. Because it is very convenient to carry, it has become a must for most teachers and drivers.

$253.90 $577.53

Cell Phone Signals High Power Jammer 8 Bands WiFi GPS

This is best desktop mobile phone blocker in our shop, suitable blocker is suitable for classroom, meeting room, library, movie theater and so on. Some education institutions and disciplinary agencies will also purchase the product. It is one of the most popular desktop jamming devices. It has very high power, the jammer range is large, the jamming signal output is stable. It has a single frequency switch, and can adjust the output power and control the jamming range.

$446.17 $900.81

S8-WG High Power 8 Bands 3G 4GLTE GPS WiFi Cheap Jammer

This is one of the most cost-effective cell phones jammers available. Has a very high power. It can jamming 3g, 4g, WiFi, GPS and other signal. Hidden output power adjustable switch design, a Good Quality Multi-functional WIFI 2.4G 5G and Cellphone 3G 4G Jammer, Adjustable and Built-in 3 Cooling Fan to support non-stop working

$395.67 $899.14

12W Hidden Antenna Handheld 16 Bands WiFi RF 4G 5G Jammer

This latest hidden antenna handheld design 16-band all-in-one frequency can block all mobile phone signals, LOJACK GPS, Wi-Fi, RF signals, 12 watts high output power, interference range 2 to 20 meters (at 75dBm, depending on (Signal strength in a given area) Two sets of antennas of different lengths are used to hide or have better interference effect, LCD display of battery power (capacity percentage, working voltage / current ABS shell, good cooling system, internal cooling fan,

$769.99 $1049.99

High Power Portable Cell Phone Blocker 2G 3G 4G LTE Lojack GPS WiFi

This is a professional portable portable high-power mobile phone jammer for mobile phones 3G 4GLTE / WIMAX Wi-Fi 2.4G / 5G GPS LOJACK UHF VHF signal jammer currently on the market, built-in battery can work for 1.5 hours. It can also be customized for high-power drone jammer models with 4-6 antennas, which gives us strong interference capabilities and can defend 100% drone drones,

$2650.99 $3088.99

N12 High Power 12 Bands Military High Power 3G 4G WiFi GPS Lojack Mobile Phone Signals Jammer

This is the most powerful handheld cellular jammer available. 8W output power. The jamming range is up to 50 meters. Can jam 12 signal bands. With DIP switch, can turn on/off any signal band without affect other bands

$651.11 $1514.16

Pocket 4 Bands Remote Control Bomb Portable Cell Phone Jammer

This 4-wire pocket jammer is the latest miniature hidden 4-antenna mobile phone jammer. The pocket design looks like a mobile power bank for blocking some remote bomb signals. It can be used to protect VIPs and groups, military security forces, SWAT teams, Bomb squads, counter-terrorism forces, anti-drug forces, anti-riot forces, anti-explosion operations teams, checkpoints, hostage negotiations, border controls, cars, trains, buses and more locally,

$469.99 $879.99

N8B 4W High Power Portable 8 Bands Cell Phone GPS WiFi Lojack Jammer

This 8 Bands Portable mobile phone frequency jammer,can jamming all types of Android phones, Tablets, Smart Phones, iPhones, Windows phones etc. that use 2G, 3G, 4G, GPS L1-L5, LOJACK, or Remote Control 315Mhz 433MHz and Bluetooth WIFI wireless signals popular in 2019 and in years to come, build-in Ni-Mh battery 4700mAH working 1.5 Hours

$308.69 $641.66

6 Bands High Power Mobile Signal Blocker Type

This cellular jamming device has a hidden design. You can hide the antenna and not easily noticeable. Has a separate band control button. You can open or close a frequency band according to your needs. This jammer is easy to carry, and you can put it in a backpack or tie it to your arm as needed

$395.79 $819.80

16 Bands Power Adjustable Desktop Mobile Phone Signal Blockers

The ultra high power desktop mobile network signal jammer can jamming 16 bands, has high applicability. As the most powerful desktop jammer, this device has comprehensive jamming bands, can jamming all mobile phone frequencies, WiFi, GPS, Walkie - talkie and so on. A total of 16 different signal frequencies can be interfered. The range of applications is very wide. This product has a very large range to jammer signals, can block all signals within 70 meters, able to meet the needs of the vast majority of situationsa

$990.39 $1815.16

Cellular Phones Jammers Portable 2G 3G WiFi Blocker

This is a very portable cell phone blocking device. Due to the convenience of carrying, the weight is lighter, deeply loved by the customer. Can be used and charged in the car. Design small and exquisite, easy to carry. Can continue to work 24 hours a day. Use of advanced cooling system, heat dissipation is very good.

$159.99 $336.61

Desktop 8 Bands Signal Cell Phone Jammers GSM CDMA LTE GPS WiFi

This desktop 3G 4G cell phone signal blocker device has a very good heat dissipation, with two cooling fans, can work all day long. Use of high hardness black aluminum shell, improve product heat dissipation. On both sides of the inlet, the outlet symmetrical layout of the formation of convection, two silent fans will heat out to ensure that the host work stable

$342.80 $692.52

Mobile Phone Signal Jammers 6 Bands Handheld 2G 3G 4G

This cellular signal blocker has a very convenient single frequency switch. You can choose to open or close a frequency band as needed. With good heat dissipation system, it can work for a long time. Can block the main mobile phone band and WIFI and GPS signals

$305.99 $523.06

Cell Phone Jammer Mini Type Portable Signal WiFi GPS

This is a mini portable hidden type multi - purpose smartphone signal blocker. First of all, the design of this device is very portable. The size of 20mm*20mm*26mm can be easily put into pocket or backpack. Second, the device has a very strong concealment. The device looks like a portable power source, can ensure that you are not easily perceived by others during your use. Third, although the device is very small, but it can also interfere with multiple signals

$99.99 $222.20

Hidden Type Photo Frame Style Cell Phone Signal Blocker Device

This cheap cell phone jammer using a new photo-frame design, has a very high hidden performance. Able to jamming all cell phone signals, allowing you to enjoy a quiet moment. Output power of each band can be adjusted by knob and jamming range can be regulated. wireless remote control available to ON/OFF the device in a range of 10 meters. Each band has a separate switch and has LED display light

$868.48 $1336.13

All Cell Phone Signal Jammer 6 Bands WiFi GPS

This 6 bands mobile phone signal blocker can jam al cell phone signal: 2G, 3G, 4G, WiFi, GPS. Is the best choice for school, the examination room, office. Can be isolated from the signal to ensure information security. Apply to all kinds of examination room, gas stations, churches, courts, libraries, conference centers, theaters, hospitals, military power and other places prohibit the use of mobile phones

$379.99 $689.98

Handheld Phone Signal Jammer 2G 3G WiFi Jamming 5 Bands

This 5 bands best mobile phone signal jammer has a very portable design, and it is very convenient to remove the antenna. There are separate frequency switches that can be turned on or off as needed. Effective prevention by GPS satellite positioning tracking, to protect your whereabouts of privacy and confidential information

$253.90 $577.53

Full Frequency Signal Cell Phone Jammers High Power Adjuestable 8 Bands

This mobile network blocker device can cut the full frequency signal of phone and WiFi signal within 50 meters of the radius. Built-in 8 bands has a very good camouflage performance. The most extensive frequency range: 100MHz-2700MHz full coverage. To ensure that the device for a long time to start working without hot, stable performance, safe and reliable

$1306.78 $2009.83

6 Bands All Cell Phone Signal UHF VHF Jammer Desktop

This all cell phone signal 6 bands portable cell phone signal blocker device can jam 2G, 3G, 4G, uhf, vhf signal in 40 meters, effectively protect your personal privacy and information security

$341.54 $583.83

Mobile Phone Signal Jamming Device Holster

This cell phone network blocker holster can effectively jamming mobile phone signals, so you will not be disturbed by incoming calls. When someone dials the phone, you will receive a "The user you are calling is temporarily out of service."

$38.53 $34.31

JAX-101C Cheap Mobile Phone Jammer 3G 4G GPS WiFi 5.8G Adjustable

This is the latest cell phone blocker for business. Designed for the latest 5.8G signals. It can effectively jamming 5.8G and other cell phone signals. In addition to mobile phone signals, the device can also block GPS, WiFi and other signals. 18W high output power, jamming range up to 40 meters. Is a very cost-effective jamming device

$659.49 $1433.54

TX-100 5G Cell Phone Signal 3G 4G GSM WiFi Jammer

It's the 5G cell phone signal jammer currently on the market only. The device is being developed for upcoming 5G mobile signals. It has been proved to be effective by various tests. In addition to 5G signals, the device can also jam 3G,4G and WiFi signals

$669.98 $1395.81

A12 30W Super High Power GPS WiFi Lojack 3G 4G 5.8G Cell Phone Signals Jammer

This is a super high power 12 band multifunction 4g cell phone signal blockerr. 30W high power, interference distance up to 75 meters. The interference distance can be adjusted as needed. The jamming performance is very stable. It has high output power, Total up to: 30W , jamming up to 75m (Still depends on the strength signal in given area). With Car storage battery Charger DC12V can be used in car. Built-in good cooling system inside, Working non-stopped. Can adjust or turn off any single band without influencing the other bands operation

$658.61 $1176.03

N8N Military High Power Portable GPS WiFi Lojack Cheap Cell Phone Jammer

This is a new 8-band portable military diy cell phone signal jammer. It has a very large jamming range. It can be hung from the arm and is very portable. With a separate control button, you can choose the frequency band you want to jam. It easy to carry, Pocket-size, Hang or wear on the arm or belt. Has high output power, Can shield all common phone signal around radius 5-40m. Each band can work separately or simultaneously with switch to turn ON/OFF

$483.29 $1150.69

BT8 18W High Power GPS WiFi Cell Phone 3G 4G Signals Jammer

As the first jammer using new jamming technology. This 8 bands desktop cell phone jammer has a jamming distance of 50 meters. It has a greater jamming distance than other 8-band desktop jammers. Can jamming a variety of frequency bands, jamming distance can be adjusted. Can adjust or turn off any single band without influencing the other bands operation

$574.98 $1267.41

N8P Portable 3G 4G GPS WiFi Lojack Cell Phone Jammer

This is a mini portable mobile phone signal jammer that can be used outdoors for a long time. It has a large capacity battery of 8000 mah. With the extended antenna, it has a larger interference range than other 8-way handheld jammers.

$541.79 $1389.02

All Mobile Jammers Phone Handheld Type Military Camouflage LOJACK

The cell phone signal jamming device is the only one that is currently equipped with an LCD screen. You can clearly observe the data by displaying the screen. It can be more precise. With a single frequency switch button, it is convenient to open or close a frequency band.

$489.98 $864.34

How to choose mobile phone signal jammer?

Before we do that, we have to understand what is a cell phone jammer. The mobile phone is almost everywhere,but it brings us convenience at the same time, but also bring us many troubles. After all, not all mobile phone users know when to stop talking. At this time we need to use the cell phone jammer, to protect a quiet environment. For example, in churches, libraries, meeting room, cinema and other places.

Life is not always what you want. Most of the time, we are bothered by many disgusting problems. The key is the way we treat them. For example, to avoid addictive mobile phone addiction, we can politely use a phone signal blocker to stop using it. Life is not always what you want. Most of the time, we are bothered by many disgusting problems. The key is the way we treat them. For example, mobile phone addiction avoids direct cuts, and we can use mobile phone interference politely so that we no longer use it.

Imagine a noisy phone ringing next to you when you dine quietly. The phone rang when you were watching a great movie. At this time, maybe you need a cell phone signal jammer.

There are many legal purposes for using them in some peoples everyday lives. Cellular based security systems testing, cell phone testing, wireless product testing, and GPS product testing are areas where technicians use them all the time to verify their equipment is working without actually causing unnecessary calls to 911 centers. Many schools, theatres, movie shops, dorms, auditoriums, restaurants, and so forth can also use them legally. Of course, needless to say, it is now legal for prisons to use the device. The cell phone jammer, developed for prisons, will only work inside the prison and will not affect commercial signals.

There are many types of cheap cell phone blocker to choose. Each jammer has its own special application range, your can choose products according to needs. If your have any questions, please contact us, we will quickly answer for your.

Now let's start selecting the jammer. First, you need to know what types of mobile jammers are there. According to the interference frequency band classification: mobile phone signal jammer. According to appearance classification: Handheld telephone blocker, desktop cellphone blocker device, mini type mobile jammer, hidden cell phone blocker.

Second, you need to know what frequency band you want to blocker, how much volume is needed and how much range to blocker.

The main frequency bands used in the United States of America in communications are GSM850, GSM1900, 3G (850/1900 and 1700/2100) and 4G (Verizon USA 4G, Sprint Clearwire WiMAX and T-Mobile 4G)

If you know the above two points, then it will be easy to pick out the right jamming device for you.

Why need to buy cell phone jammer?

Why do we need cell phone jammers? It's not hard to understand. Many times we need to keep quiet. For example, at the library, during meetings, during movie screenings. We will meet many occasions where we need to keep quiet, but unfortunately, it is difficult to do, because everyone use mobile phones now. It's not hard to imagine the phone ringing at any moment when you need to be quiet. Sometimes, even if you are polite, there is no response. So we have to start using cell phone jammers

With the development of mobile phones, people's demand for the Internet is getting higher and higher, and the demand for data traffic is also increasing. People's daily traffic is up to 3G or higher, so people rely on mobile phone signals. As for the large number of mobile networks now, you can see in cinemas, restaurants, train stations and other places, it will be a mobile network, which provides convenience to people, but also brings some trouble to people. For example, with signals, people can use their phones, their phones can shoot videos, and so on to watch them in public places. If everyone is good at following the rules of public places, then the problem is small. But this person meets, so some poor people will never ignore the opinions of others, feel and enjoy themselves in a quiet place (phone, TV, playing games, listening to music, disturbing others). This inevitably leads to such a problem, why install a cell phone signal?

A cell phone jammer is a device used to prevent a cell phone from receiving signals from a base station. They can be used anywhere, but are usually used where calls are interrupted. Mobile phones are very useful because we can connect with anyone at any time, but sometimes it becomes cumbersome. Some mobile phone users do not know when to stop a call. Jammers are used in places where quietness is required. It creates a temporary "dead zone" for all mobile phone traffic in the air system.

Using such devices is now quite common. More and more people use them to protect their rights. It is not uncommon to see this kind of equipment in cafes, restaurants, cinemas, libraries and other places that need to be kept quiet

Imagine using such a device to create an isolated environment for you to work and study more efficiently. And who can resist the temptation. Therefore, more and more people choose to use such devices.

Do you feel not private enough when holding a senior company conference? Or do you have the necessity to protect yourself from being recorded in public or at home? The one and best way to realize that is to own a cellular signal blocker.

Not many people know that mobile phone frequency may be used by law enforcement agencies with many surveillance purposes. For example, they can get the private data from your cell phone with the help of mobile phone carrier. While they supposed to obtain a warrant for such procedure in fact they often do not do that, violating your privacy expectations in that way. Moreover, some law enforcements may wiretap your cell phone for eavesdropping of all your conversations. In this case you will definitely need a mobile signal blocker to block mobile phone signal. Yet those are not the only problems you might have.

3G 4G frequency can also pose a threat to your wireless security. With its help some hidden cameras stream video; people are getting access to the wireless internet in places, where according to security policies should be no wireless networks at all, and your smartphone might be probed in a manner like Trojan viruses probe PCs. So you can use devices from this category to protect yourself from all those threats.

Cell phone signal blockers can solution for any application. Each of these fixed location signal blockers describes what the best uses are, as well as the amount of jamming coverage area you can expect.

About Cell Phone Signal Jammers

Cell phone jamming devices overpower the cell phone by transmitting a signal on the same frequency and at a high enough power that the two signals collide and cancel each other out. Cell phones are designed to add power if they experience low-level interference, so the jammer must recognize and match the power increase from the phone.

Cell phone jamming devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists. The bombs that blew up commuter trains in Spain in March 2004, as well as blasts in Bali in October 2002 and Jakarta in August 2003, all relied on cell phones to trigger explosives. It has been widely reported that a cell-phone jammer thwarted an assassination attempt on Pakistani President Musharraf in December 2003. When President Bush visited London in November 2004, it was reported that British police considered using jammers to protect the president's motorcade through London.