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GSM Jammer 2G 3G Blocker Product Online

Portable black 4-wire WIFI GPS GSM jammer cover 20 meters

4-wire GSM jammer

Using this 4-band jammer, you can effectively jam the signal from the mobile phone 2G 3G GPS WiFi. Very easy to carry and hide. It can work continuously for 1 to 3 hours.

$168.69$255.98

The Latest Handheld High Power 4G Mobile Signal Jammer

4G Signal Jammers

A new type of 8-band portable jammer. It has a larger interference range. It can be hung on the arm, using a separate control button, you can select the frequency band to interfere.

$426.69$699.79

Glod 4 antennas GSM jammer block UMTS WIFI GPS sinal Optional

4 Bands portable Jammer

This is a very Glod 4 antennas portable WIFI 315 433 868mhz GPS jammer. Due to the convenience of carrying, the weight is lighter, deeply loved by the customer.

$169.88$300.69

Desktop jammer 3G 4G GPS WiFi GSM signal jammer 2 powerful fan

Desktop 8 bands jammer

The desktop GSM 3G 4G GPS WiFi jammer has two silent fans to dissipate heat to ensure stable operation of the host.Adopt high hardness black aluminum shell.Improve heat dissipation.

$460.49$788.59

New 12 Antenna High Power 3G 4G 5G Cell Phone Signal Jammer

12 antennas signal Jammer

This powerful new signal jammer is designed with 12 antennas and has multiple functions. It can cut off all 3G, 4G, and 5G cell phone signals, and it can also block LOJACK GPS WiFi signals.

$729.99$1409.19

Portable GSM Jammer WIFI 3G LTE4G GPS integrated Blocker

6 Bands gps gsm Jammer

This jamming device has a hidden design. You can hide the antenna and not easily noticeable. Has separate band control button. You can open or close a frequency band according to your needs.

$408.69$669.39

Multifunctional 2G 3G 4G 5G cell phone signal and WIFI jammer

5G cell phone signal Jammer

The high-power 30W jammer effectively shields 2G 3G 4G 5G mobile phone signals and WIFI signals, and has a wide coverage range of 100 to 200 square meters (-75 dBm).

$369.69$555.98

12 Antennas Plus High Power Portable Mobile Phone Signal Blocker

12 Antennas Signal Jammer

This is currently the most powerful handheld jammer. The maximum interference range is 60 meters. Can block 12 signal bands. Use the DIP switch to select any signal frequency band.

$699.88$1369.99

3 band portable GSM Jammer GPS cell phone blocker for cheap sale

 GPS GSM 3G Jammers

This is a small multi-functional mobile phone blocker with GPS/GSM/3G signal blocking function. Small size, easy to transmit GPS signals. Especially easy to carry.

$69.99$129.29

The latest high-power desktop 5G 4G 3G WIFI GPS signal jammer

8 Bands desktop blocker

The device can also block GPS, WiFi and 2G, 3G, 4G cell phone signals. 18W high output power, interference range up to 40 meters. It is a very cost-effective interference device.

$719.89$1433.54

Portable 12-band high-power 2G 3G 4G GPSL1-L5 WIFI 2.4G 5G signal jammer

high-power mobile phone jammer

One is a professional suitcase portable high-power mobile phone jammer used in the market for mobile phones 3G 4GLTE / WIMAX Wi-Fi2.4G / 5G GPS LOJACK UHF VHF signal blocker.

$2499.99$3975.29

The latest GSM blockers for sale


10-channel mobile phone signal blocker

The 10-channel mobile phone signal blocker is a green and environmentally friendly mobile phone signal blocker, which only blocks the reception of the mobile phone on site and has no impact on the surrounding base stations. 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.

$389.99 $699.99


Portable cell phone GSM jammer for LTE/4G/GPS with 6 powerful antennas

Portable jammers for cell phones 6 antennas, signal blockers for cellular networks VHF / WiFi / GPS / UMTS / LTE4G / CDMA Portable cell phone blockers, range 30m, efficient cooling saves energy.
Blocking frequencies optional: GPS / GSM / UMTS / LTE4G / UHF / WIFI

$299.99 $429.12


New 10 Antenna Cell Phone WiFi Jammer

The hand-held signal jammer is a high-tech product that our factory adopts advanced technology at home and abroad, according to the continuous development of communication standards, according to the actual situation of wireless communication at home and abroad; it can effectively screen (CDMA/GSM/DCS/2G/3G) /4G/5G/WIFI) and other wireless signals, and have no negative impact or interference on the communication and transmission of other electronic devices around.

$399.99 $619.99


Portable jammer GSM 3G WIFI GPS bluetooth 5 antenna video signal blocker

This portable Bluetooth WiFi GSM 3G mobile phone jammer is cheap, and the maximum interference range is 20 meters (depending on the signal strength). If you want a portable multi-function WiFi jammer, this is your best choice.

$209.88 $398.16


Power adjustable jammer GSM GPS WIFI 3G 4G 5G signal jammer

The latest high performance 5G cell phone jammer is capable of jamming all phones including the new 4G LTE 5G and WIFI bands. Each individual band can be adjusted separately.

$616.99 $995.88


Standard installation method for each component of the UMTS GSM jammer

The components of the cell phone signal jammer generally include: a host, an antenna, and a power adapter. When installing the phone jammer, since the inner circumference of the host and the antenna at a distance (typically 20-30 cm) has a stronger signal magnetic field, while the 220V power line (ferroelectric) outside (typically 5-10 cm) has magnetic interference, it It is very important to place the mounting positions of the various components, because the placement position is wrong, which may interfere with the shielding signal transmission and affect the shielding effect. The standard installation distance of each cellphone jammer component is:

The power adapter should be more than 20 cm away from the host. There is no strong electric line (AC220V) within 20cm around the antenna;

Installation Method of Cell Phone Signal Jammer Compromise

If the cell phone jammer during installation, limited space installation environment, the power adapter lateral displacement of more than 20cm can not, compromise under the power adapter cell phone jammer host such an approach, power supply The adapter will continue to be through the jammer host's strong magnetic field Cell phone interference, but the interference is less than that of the power supply near the host sides.

No strong energy around the antenna (220V/380V)

Cell phone signal jammer wall-mounted, note that the antenna signal interference perimeter of the phone (including the left and right sides of the antenna, above the antenna, the antenna is embedded in the wall of the strong electrical location of dark lines, etc.) can not have a strong electrical line The strong electrical line here refers to the light or dark line that normally lies on the wall, which is a 220V or 380V AC line. The strong electrical line also includes a 220V power line that powers the cell phone signal jammer. If the location of the mobile phone installed after the jammer is unavoidable, a good, strong power line is agreed, leaving the line modified to bypass the U-shaped mobile phone jammer host and antenna position. It is generally recommended to place the high voltage line a certain distance below the main unit of the jammer.

Power supply removed from host

The power supply is 220V AC to 5V DC (model based on the interference, the DC voltage output vary from different models), to power the host phone signal jammer, the power supply must be placed away from the host phone interference from more than 20cm Otherwise, the strong magnetic field of the host and antenna will cause the adapter output voltage to decrease, affecting the normal operation of the cell phone jammer, resulting in poor shielding.

What is a GSM jammer?

GSM are the initials of Global System for Mobile Communications and encompass the entire global network over which cell phones communicate. As the name suggests, a GSM jammer can scramble the waves sent and received by cell phones and therefore interfere with the frequencies used by phone operators to prevent communications.

There are many models of jammers, from simple jammers capable of breaking communications within a 5 meter radius, to professional jammers that cover an area of ​​up to 50 meters.

If your alarm system works thanks to the GSM network, wave jammers can have the same effect on it as on cell phones. Once a jammer is intentionally used in the direction of your alarm, it will no longer be able to issue warnings.

The use of GSM alarm jammers is becoming more common. This is facilitated by the internet where it is very easy to buy a GSM jammer. It can block any alarm connected via GSM.

GSM alarm jamming device

With the advancement of technology, many people in life cannot get off the phone, but this phone can easily reveal our personal information and monitor the call. Commercial and military, cell phones can be used as an illegal means of eavesdropping, and the spy phone can be used in many important locations to steal and, to a large extent, hide confidential information. If you are concerned about tracking GSM number, our GSM jammer can solve these problems perfectly. It blocks all covert phones and protects your privacy.

Jammers are used legally in concert halls in the United States to ensure the calmness of the audience and the smooth progress of performances (movies, plays, concerts, etc.). This is to avoid annoying ringtones that will disturb neighbors or performing artists.

They are also used in prisons to control conversations with prisoners and closely monitor them.

After all, if necessary, the police can use jammers to protect sensitive areas or during intervention.

About GSM blockers

With the improvement of people's living standards, more and more parents will create many favorable conditions for their children. They will buy some learning machines, or smart phones, for their children to help them improve their academic performance. Originally, the parents are very kind, helping the children to improve their grades. But we have to know that every child has a childlike innocence and some mistakes will inevitably occur. Many friends on the road will take out their mobile phones to search on Baidu during the exam, and write the answers in their own papers, so that their scores can be particularly high. But all of us also know that Tao is one foot high and evil is one foot high. Teachers are afraid of this situation, so they buy GSM Jammer.