Popular 3G 4G 5G Cell Phone Jammer for sale

As the most popular handheld cell phone signal jammer, this product has a small size, easy to carry. Can block 8 bands frequencies, and have a very large jammer range.
$315.99
View Details
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.
$999.88
View Details
The world's first handheld design, with 10 all-in-one frequencies, can block all mobile phone signals, GPS and WIFI signals, and the interference range is 2 to 30 meters.
$650.99
View Details
The latest handheld design 16 bands cell phone jammer blocking all 5G 4G 3G 2G signals GPS WiFi RF signals 16 watt high output power, Jamming range 2 to 25 meters.
$839.99
View Details
The jamming radius of all 16 bands can be manually adjusted. In this way you can select the frequencies you would like to jam at particular time, while not jamming other frequencies.
$999.99
View Details
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, also block LOJACK GPS WiFi signals.
$789.99
View Details
As the world first all-in-one 5G cellphone signal jammer with 3.5G, 3.7G,5G WIFI and Remote control,which can also block GSM, 3G, 4G, VHF, UHF, Wi-Fi, GPS, L1, L2, L5, LOJACK, 5.2G,5.8G,3.5G,3.7G, RF signals.
$749.99
View Details
This is a jammer that can be used outdoors for a long time. a large capacity battery of 8000 mah. With the extended antenna, a larger interference range than other 8-way handheld jammers.
$539.69
View Details
This is a WiFi jammer with 12 antennas that can provide strong interference signals. Can cut off all 3G 4G WiFi5.8GHz GPS VHF UHF RF 315MHz 433MHz signal. interference is 40 meters.
$619.88
View Details
Designed 22 antennas all-in-one mobile phone 5G signal jammer. The full-band jammer is powerful, and the jamming radius can reach 40 meters. most popular desktop jammer.
$789.99
View Details
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
View Details
This is a 5G mobile phone jammer developed for the upcoming 5G mobile signal. It has been proved to be effective through various tests. the device can also block 3G, 4G and WiFi signals.
$616.99
View Details
This is a portable GPS signal jammer, which can cover 30 meters. Such portable signal interference includes CDMA GSM WIFI-2.4G 3G (UMTS) 4G GPS LoJack DCS PCS.
$301.99
View Details
All frequency mobile phone signal jammer, Using efficient cooling technology, built-in 6 cooling fans, the device can work long hours.Jamming radius up to 40 meters.
$508.99
View Details
One is a professional suitcase portable high-power cell phone jammer used in the market for mobile phones 3G 4GLTE / WIMAX Wi-Fi2.4G / 5G GPS LOJACK UHF VHF signal blocker.
$2499.99
View Details

Multifunctional and Practical Cell Phone Blocker


Hidden Antenna 16 Bands Cell Phone Signal Jammer 4G 5G WiFi RF GPS LOJACK

This device is suitable for classrooms, conference rooms, libraries, cinemas and other places that need to be kept quiet. The device is popular with teachers and administrators due to its small size and easy concealment. As the most popular portable cell phone jammer, this product is small and easy to carry.

$760.99 $1499.56


10-channel mobile phone signal blocker

The 10-channel cell phone signal jammer 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

Multifunctional Portable WIFI 3G 4G 5G Cell Phone 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). Equipped with precision voltage stabilizing circuit, it can be used normally even in the case of large voltage fluctuations 4. Original chips and circuit boards ensure high efficiency, stable performance and long life.

$369.69 $555.98


5-band adjustable desktop cell phone jammer for GSM 3G 4G WIFI GPS frequency

White aluminum shell high-power desktop mobile phone shielding device, good heat dissipation, can work for a long time. Interfere with GSM, 3G, 4G. The best choice for home jammers. Built-in industrial-grade high-power switch power supply, to ensure the stability of the signal, accuracy.

$316.89 $599.66

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

It can block high-performance jammers for GSM UMTS 4G GPS WiFi LOJACK signals. And the shielding radius can reach 40 meters. It uses the latest external fan design to make it easier to dissipate heat, and it can work 24 hours a day.

$460.49 $788.59

Hidden Antenna 16 Bands Video:

Latest 16-Band 5G Jammer Video:

Which frequency bands are blocked by phone jammer?

When the mobile phone is working, it is within a certain frequency range. The mobile phone and the base station are connected by radio waves to complete the transmission of data and sound with a certain baud rate and modulation method. The common mobile phone signal jammers on the market have the following frequencies: 869 - 894MHz; 925 - 960MHz; 1805 - 1880MHz and 1900 - 1990MHz, etc. The working frequency bands are CDMA800, GSM900, DCS1800, and PCS1900.

The cell phone jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during the working process. The scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as searching the network, no signal on the mobile phone, no service system, etc.

Therefore, mobile communication is also called cellular mobile communication. As far as the mobile phone in each cell is concerned, it communicates with the base station through the uplink frequency of the channel, and then transfers the signal to the MSC to communicate with other mobile phones or fixed phones. The radio frequencies received by the mobile phone are divided by frequency band:

GSM segment 925-960MHz, DCS segment 1805-1880MHz, CDMA segment 869-894MHz, PHS PHS 1900- 1990MHz, SCDMA450- 470MHz, wCDMA2110-2170MHz, TD-SCDMA2010- 2025MHz. Each frequency band is divided into many channels with a certain bandwidth. Each cell uses several channels, one of which is called the broadcast control channel, represented by BCH, and the other channels are called the traffic channel. In the standby state, the mobile phone starts the receiving circuit intermittently to receive the BCH in the cell where it is located. According to the field strength of the BCH signal, the signal bar is used to display the signal strength indicator RSSI on the LCD. When making an outgoing call, the first step is to ask the MSC for instructions through the BCH, and the MSC handles the calling or the called party. The MSC assigns a service channel to the mobile phone according to the channel status in the cell, so that the mobile phone jumps from the BCH to the service channel to realize the call. It can be seen from this that the BCH in the community is the medium and advance condition for realizing mobile phone communication. If the mobile phone cannot find the BCH in the community, there will be no network name and signal strength indication on the light screen LCD, that is, the mobile phone will be in no network, no In the state of network access, the mobile phone cannot realize the function of calling or called, that is, the mobile phone signal is equivalent to being blocked.

Phone signal jammer is a mobile phone jammer that can effectively block 2G 3G 4G 5G network. It is a mobile phone signal digital blocker for mobile communication with high efficiency and high reliability. The product adopts advanced adaptive digital technology, high-efficiency HPA technology, and TD-SCDMA/TD-LTE synchronization technology. While achieving efficient shielding, it does not interfere with any operator's base station of any standard.

What is a cell phone signal jammer?

A cell phone jammer is a device that blocks reception between cell towers and cell phones. Developed for the military and law enforcement, the devices were originally created to counter threats such as cellphone-triggered explosives and hostage situations.

How do cell phone jammers work?

Cell phone jammers, known as cell phone jammers, signal blockers, GPS jammers or text blockers, block radio frequencies within a given area, creating a kind of signal traffic jam that blocks all communications. Just like a radio mute bubble, as long as the user is within range of a cell phone blocker, no calls or texts can be sent or received.

Why use a cell phone jammer?

Proponents of the technology argue that signal-jamming devices are necessary in many places where humans seem unable to abide by widely accepted rules of proper cell phone etiquette. Think schools, theaters, vehicles, or other quiet train trips...just about any place where talking, texting, streaming, etc. might be considered disruptive or even dangerous.

Keep in mind that mobile signal jammers don't just block voice and text on your phone, they can also interfere with GPS, WiFi, and perhaps most problematically - police radar. That's why, as mentioned above, the federal government bans the sale, promotion, and use of cell phone jammers in the United States. So if you want a little peace and quiet with your shiny new signal blocker, you might just have to settle for earbuds.