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

Showing 46 Product
Buy this item now and get 52% off
Jamming radius:2-25meters
Battery Life:1.4+ hours
Device size:295*260*125mm
Device weight: 2500g
$799.98 $1689.48
World First 24 Antennas all-in-one design wireless signal Jammer with nylon cover for portable, jamming all types of Android phones, Tablets, Smart Phones, iPhones, Win phones etc. that use 2G, 3G, 4G 5G, and CDMA 450Mhz, Block GPS, Wi-Fi 5G, Walkie-Talkie UHF/VHF and RF signals like 315, 433, 868,915,LORA,LOJACK etc. Battery capacity LCD display.
Buy this item now and get 49% off
Jamming radius:5-40meters
Battery Life:2.0+ hours
Device size:255*127*74mm
Device weight: 1200g
$499.88 $998.88
Compared with traditional products, the appearance and function have been subversively improved. Within a radius of 5 to 40 meters, it can effectively shield 2G 3G 4G 5G mobile phone signals, WIFI signals and GPS tracking signals of China Unicom, the three networks; the unique wood grain design is simple and elegant, suitable for various occasions.
Buy this item now and get 25% off
Jamming radius:2-20meters
Battery Life:2.0+ hours
Device size:330*250*80mm
Device weight: 1500g
$779.99 $1049.99
This latest hidden antenna handheld design 16-band all-in-one frequency can blocking all mobile phone signals, LOJACK GPS, Wi-Fi, RF signals, 12 watts 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,
Buy this item now and get 40% off
Jamming radius:Up to 40 meters
Battery Life:1-2 Hours
Device size:130mm*80mm*38mm
Device weight: 800 g
$350.99 $584.48
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
Buy this item now and get 55% off
Jamming radius:Up to 45 meters
Battery Life:2.0+ hours
Device size:160mm*83mm*46mm
Device weight:1500 g
$681.00 $1514.16
The advantages of this cheap cell phone signal jammer are obvious, with a large jamming range and many cellphone jamming frequency bands, it can block cell phone signal.
Buy this item now and get 49% off
Jamming radius:2-40 meters
Total output power:45W
Device size:450x 238x 60 mm
Device weight: 7kg
$799.99 $1589.12
This is the newly designed 22-antenna 5G cellphone jammer. It can not only cut off all 5G 3G 4G mobile phone signals, but also block Wi-Fi 2.4G / 5GHz GPS LOJACK, RF 315 MHz 433MHz and other signals, output power 42 watts, with infrared The remote control turns on/off the power.
Jamming radius:100-200 square meters
Installation Height:1.8~2.5m
Device size:320*235*65mm
Device weight: 1.42/2.0kg
$380.99 $759.63
This is a wall-mountedwifi mobile phone jammering, using ABS shell: waterproof, wear-resistant, interference distance of 100-200 square meters.
Jamming radius:2-25meters
Battery Life:Around 2.5 hours
Device size:190x126x46 mm
Device weight:2.0kg
$831.65 $1567.49
In 2021, the latest handheld 18-band 5 phone jammers can block 2G 3G 4G 5G Wi-Fi GPS UHF VHF, and the shielding distance of 18Wdevices can reach 25m.
Jamming radius:Up to 15 meters
Battery Life:1-2 Hours
Device size:230mm*90mm*50mm
Device weight:600 g
$530.89 $919.80
This is a hidden design cellular jamming device with separate frequency band control buttons, this cell jammers is easy to carry, you can take it with you.
Jamming radius:2-25meters
Battery Life:100 minutes
Device size:200x133x66mm
Device weight:2.5kg
$1015.03 $3015.87
The world's first 24-antenna integrated design handheld wireless signal jammer, jamming 2G, 3G, 4G 5G CDMA 450Mhz GPS, Wi-Fi 5G, walkie-talkie UHF/VHF and RF signals 315, 433, 868, 915, LORA, LOJACK, etc. All types of signals.
Jamming radius:1-15M
Power supply:AC110-240V to DC12V
Device size:240x250x69 mm
Device weight: 1.11 Kg
$460.43 $1048.57
10 antenna cell phone jammer can effectively shield (CDMA/GSM/DCS/2G/3G/ 4G/WIFI/GPS/Beidou GPS/5G/5.8G/VHF/UHF) and other wireless signals, And it does not have any negative impact and interference on the communication and transmission of other electronic devices around.
Jamming radius:10-80meters
Power supply:AC110-240V to DC24V
Device size:320x 310x 91mm
Device weight: 8.0kg
$1255.43 $3546.02
The mobile phone WIFI GPS 5G signal jammer is designed with 12 antennas, which can cut off all 3G 4G 5G mobile phone signals, and can also block WiFi GPS LOJACK signals. And with an adjustable 90-watt, the device has a maximum interference radius of 80 meters.
Jamming radius:10-80meters
Power supply:AC110-240V to DC12V
Device size:410x310x 91mm
Device weight:10.0kg
$1829.52 $4547.09
The newly designed all-in-one powerful mobile phone 5G 5G WIFI GPS UHF/VHF signal jammer is designed with 16 antennas, which brings us powerful jamming ability, the jamming radius of this device can reach up to 80 meters.
Jamming radius:5-50meters
Power supply:AC110-240V to DC12V
Device size:210x130x46 mm
Device weight: 2.0kg
$767.78 $1297.84
The latest unique hand-held mobile phone signal jammer, good interference to mobile phone GSM CDMA DCS 2G, 3G, 4G 5G, can also block LOJACK WIFI2.4G GPS, the farthest can reach 50 meters.
Jamming radius:1-15M
Power supply:AC110-240V to DC12V
Device size:240x250x69 mm
Device weight: 1.11 Kg
$443.90 $957.14
10 different signal frequency bands, support simultaneous interference with mobile phone, wifi, GPS and other signals, single-channel power can be up to 5W, effectively expanding the operating distance.
Jamming radius:1-20M
Power supply:AC110-240V to DC12V
Device size:130x80x37mm
Device weight: 1 Kg
$296.99 $597.48
The 8-antenna signal jammer can effectively shield CDMA GSM DCS 2G 3G 4G WIFI GPS GPS signals, as well as other surrounding electronic devices, with a radius of 1-20 meters.
Jamming radius:10-80meters
Total output power:79W
Device size:355x 238x 60mm
Device weight: 5.0kg
$899.99 $1609.21
New 12 antenna cell phone WIFI GPS 5G mobile signal jammer can cut off all mobile phone signals and WiFi GPS LOJACK signals, and the interference range can reach 80m.
Jamming radius:2-25meters
Working Time: 2.0+ hours
Device size:190x126x46 mm
Device weight: 2.0kg
$846.29 $1638.29
The most popular 16-band 5g handheld jammer in 2021 can interrupt two signals at the same time, and can shield up to 25m. It is portable and can be easily adapted to multiple occasions.
Jamming radius:Up to 40 meters
Total output power:5.6W
Device size:250mm*240mm*70mm
Device weight: 700g
$563.28 $1150.69
This is a new 8 band portable military diy jam cell phone signal jammer, it has a very large jamming range, separate control buttons, you can choose the band you want to jam.
Jamming radius:0.5-5meters
Battery Life:2 Hours
Device size:150x145x35mm
Device weight:200-300g
$379.99 $679.99
This mini small signal cellphone jammer can be used in public places such as conference rooms, museums, art galleries, theaters, concert halls, churches, classrooms, etc.
Jamming radius:2-40meters
Total output power:18W
Device size: 370x 140x51 mm
Device weight:3.5kg
$563.29 $951.48
This is the first mobile phone jammering that can interfere with higher WIFI frequencies operating in the 5GHz spectrum, with a shielding distance of up to 40 meters.
Jamming radius:20-80meters
Total output power:100W
Device size:445x 272x 70mm
Device weight: 8.0kg
$1299.99 $2533.46
The world's first powerful all mobile phone 5G / 4G / 3G / 2G WIFI GPS LOJACK UHF VHF signal jammer, with 16 antennas, adjustable 100W output power, interference up to 80m
Jamming radius:Up to 40 meters
Total output power:19W
Device size:140mm*51mm*350mm
Device weight:3200 g
$620.49 $1200.81
The advantages of this cheap cell phone signal jammer are obvious, with a large jamming range and many cellphone jamming frequency bands, it can block cell phone signal.
Jamming radius:Up to 40 meters
Total output power:17W
Device size:470*270*130mm
Device weight: 2500 g
$475.64 $999.14
This is one of the most cost-effective cell phone jammers available, it can jam 3g, 4g, WiFi, GPS and other signals, supports long hours of work, and has a maximum shielding distance of 40m.
Jamming radius:up to50meters
Installation Height:1.8~2.5m
Device size: 450*450*200mm
Device weight: 17.0kg
$1147.99 $1663.99
TX-NZ150W is a self-developed wall-mounted phone WiFi signal jammer. It can block all 2G 3G 4G 5G phone signals and WiFi signals, with large coverage, effective interference effects and complete shielding of all phone signals.
Jamming radius:Up to 60 meters
Total output power:8.4W
Device size:165mm*96mm*46mm
Device weight: 1500 g
$731.08 $1514.16
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
Jamming radius:2-20meters
Battery Life:7-8 Hours
Device size:150x145x35mm
Device weight:200g
$479.99 $1003.46
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,
Jamming radius:Up to 40 meters
Total output power:4W
Device size:132mm*80mm*41mm
Device weight: 800 g
$387.99 $741.66
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
Jamming radius:Up to 70 meters
Total output power:38W
Device size:395*238*60mm
Device weight: 7000 g
$1078.34 $1915.16
The ultra 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
Jamming radius:Up to 40 meters
Total output power:18W
Device size:140mm*48mm*360mm
Device weight: 3000 g
$460.89 $692.52
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
Jamming radius:Up to 30 meters
Total output power:3W
Device size:130mm*80mm*38mm
Device weight: 2000 g
$398.92 $623.06
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
Jamming radius:Up to 10 meters
Battery Life: 2 Hours
Device size:95mm*48mm*17mm
Device weight: 290 g
$106.99 $320.20
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
Jamming radius:Up to 50 meters
Total output power:15W
Device size:660*460*78mm
Device weight: 2500 g
$948.49 $1436.13
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
Jamming radius:Up to 40 meters
Voltage:AC220V, DC12V
Device size:140mm*51mm*305mm
Device weight: 2500 g
$528.49 $789.98
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
Jamming radius:Up to 30 meters
Power supply:Built-in battery
Device size:130mm*80mm*38mm
Device weight:500 g
$339.88 $677.53
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
Jamming radius:Up to 30 meters
Total output power:12W
Device size:360mm*180mm*60mm
Device weight:2700 g
$459.48 $683.83
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
Jamming frequencies:Mobile Signal
Device size:130mm*70mm
Device weight: 20 g
$100.59 $191.31
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."
Jamming radius:Up to 40 meters
Total output power:18W
Device size:385*135*50mm
Device weight:3000 g
$670.99 $1533.54
This is the latest cell phone blockering for business. Designed for the latest 5.8G signals. It can effectively jamming 5.8G and other jamming cell phone signals. In addition to mobile phone signals, the device can also block GPS, WiFi and other signals. 18W power , jamming range up to 40 meters. Is a very cost-effective jamming device
Jamming radius:Up to 55 meters
Total output power:100W
Device size:321mm*185mm*80mm
Device weight: 4500 g
$749.99 $1495.81
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
Jamming radius:Up to 75 meters
Total output power:30W
Device size:490*450*100mm
Device weight: 5500 g
$738.58 $1176.03
This is a super 12 band multifunction 4g cell phone signal blockerr. 30W , interference distance up to 75 meters. The interference distance can be adjusted as needed. The jamming performance is very stable. It has 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
Jamming radius:Up to 50 meters
Total output power:18W
Device size:470*270*130
Device weight: 3000 g
$624.99 $1267.41
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
Jamming radius:Up to 45 meters
Total output power:5.6W
Device size:240*250*70mm
Device weight: 1200 g
$621.71 $1389.02
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.
Jamming radius:10-80meters
Battery Life:1.5Hours
Device size:465 x 365 x 185 mm
Device weight: 12kg
$2650.99 $3088.99
This is a professional portable 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 fordrone jammer models with 4-6 antennas, which gives us strong interference capabilities and can defend 100% drone drones,
Jamming radius: 20-120 meters
Total output power:100-130W
Device size:550x 238 x 60 mm
Device weight: 10kg
$5519.88 $9138.47
This is the latest multi-function jammer that can simultaneously shield signals such as mobile phones, wifi, drones, etc. The farthest shielding distance is 300 meters.
Jamming radius:10-80meters
Total output power:79W
Device size:355x 238x 60mm
Device weight: 5.0kg
$555.39 $1064.34
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.
Jamming radius:Up to 20 meters
Battery Life:1-3 hours
Device size:62mm*34mm*190mm
Built-in battery: 2000mAh
$256.13 $386.61
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.
Jamming radius:Up to 50 meters
Total output power:10W
Device size:275mm*118mm*323mm
Device weight: 5500 g
$1386.38 $2009.83
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
Shielding radius:(2-40) meters at -75dBm Still depends on the
Built-in battery: 24V/5200mAh
Continue working: Around 70
minutes Dimensions: (length ,width, height) 200x133x66mm (without antenna)
Gross weight: 2.5kg
$899.98 $1898.99
For some locations of special purpose such as hospitals, gas stations and more, please do field test first to make sure no interference happened to the normal operation of their equipment and instrument It can be applied at meeting rooms, conference rooms, museums, galleries, theatres, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, bus and more Places that require silence, confidentiality and information security
Shielding area: 0.5-2 M @ according to signal density mobile network
Power: supply AC110~220-DC15V/3A
Power consumption: 48W
Weight: 1.3Kg
Side(length ×wind ×high):170×40×96 cm
$443.91 $699.98
This machine adopts 10 channels of output, which can shield all kinds of mobile phone signals in the range of 1-4 meters (depending on the signal strength of the base station) in domestic and foreign mobile phones; contact was completely cut off. The 10-channel mobile phone signal blocker is a green and environmentally friendly mobile phone signal blocker. It only blocks the reception of the mobile phone on site, and has no effect on the surrounding base stations.
Shielding area: 0.5-2 M @ according to signal density mobile network
Power: supply AC110~220-DC15V/3A
Power consumption: 48W
Weight: 1.3Kg
Side(length ×wind ×high):170×40×96 cm
$687.78 $987.98
The 12-channel cell phone signal jammer is a green and environmentally friendly cell phone signal jammer, which only blocks the reception of the on-site cell phone and has no impact on the surrounding base stations. This machine adopts 12 channels of output, which can shield various mobile phone signals in the range of 1-10 meters (depending on the signal strength of the base station) in domestic and foreign mobile phones; contact was completely cut off.

About Cell Phone Signal Jammers

Cell phone jamming device 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. Blocking 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.

How to choose mobile phone signal jammer?

Before we do that, we have to understand what is a cell phone jammers. 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 cell 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.

Choose a mobile cell phone blocker according to your needs

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 jamming. According to appearance classification: Handheld telephone blocker, desktop cellphone blocker device, mini type mobile jammer, hidden cell phone signal 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 for workplace.

This is currently one of the most powerful military mobile cell phone blocker. With 10 interference frequency bands, each interference frequency band can be independently ...
Today we will introduce the most popular handheld cell phone jammer in the United States in 2018. The equipment is very popular among teachers, businessmen and ...
For any jammer circuit, it’s essential to have three important sub circuits: RF amplifier, Voltage Controlled Oscillator and Tuning circuit You can also use this mobile signal jammer to block any cell-based tracking systems which use your GPS to track and record your car’s moves. And it is quite possible to jam IEDs which detonated using cell phones.

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 cellphone signal jammer?

A portable 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. cell signal 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 cell blockers describes what the best uses are, as well as the amount of jamming coverage area you can expect.

In fact, this method has been used by many enterprises. Because in many enterprises, employee slacking has always been a big problem. More and more people are using social media at work. Watch video. As managers, they are powerless.
How to work cell phone jammer? Disrupting a cell phone is the same as jamming any other type of radio communication. A cell phone works by communicating with its service network through a cell tower or base station. Cell towers divide a city into small areas, or cells. As a cell-phone user drives down the street, the signal is handed from tower to tower.
According to some specialists the new models of cell phone jammer will lower the number of car accidents. If you are one of many people who are still wondering how this is possible, then let us give you brief information on this topic by saying that lots of us are taking serious risks talking on the phone while driving. This is why scientists designed a special type of cell phone jammers that should be installed in some of the latest models of cars.
For purposes of use, cell phone jammer is rarely used in extreme environments. Therefore, the use of extreme environments is not considered in the design. Usually the jammer can work in an environment from -10℃ to 50℃. If the temperature is too low, the jammer may need to be warmed up for a period of time to work properly. If the temperature is too high, prolonged use may cause damage to the jammer.