Medium-sized Mobile phone WiFi signal jammer for with jammer radius up to 40 meters

Mobile phones basically use radio frequency signals in a specific frequency range to transmit voice/data through wireless media in order to communicate with other mobile phones. These signals are coordinated by cell towers in the area covered by mobile phones.

In most cases, mobile phones use one frequency to send signals and another frequency to receive signals. The frequencies used by major telecommunications standards such as GSM, CDMA, 3G/4G, DCS, PHS, etc. are fixed and large areas. Therefore, by sending a high-power RF signal that needs to be blocked in the same range as the mobile phone communication signal, it is possible to produce shielding in the mobile phone communication (in a specific area).

To do this, people may need a small device called a'cell phone jammer' (with a transmitter, antenna and other electronic circuits). When someone turns on this device, high-power radio frequency signals are generated and sent out (within a certain coverage area), thereby shielding real cellular voice/data signals, thereby effectively blocking/interrupting them.

30 - 40 Meters Medium-sized signal jammers

8 Bands High Power Desktop Jammer For CDMA GSM 3G 4G GPS WIFI Frequency
8 Bands High Power Desktop Jammer For CDMA GSM 3G 4G GPS WIFI Frequency

This 8-band desktop signal jammer adopts advanced manufacturing technology. In view of the diversity of the signal spectrum, it can meet the signal shielding needs of different users. It is a high-tech product carefully developed according to the actual situation of mobile communication. It can be within a radius of 40 meters. Long GSM/CDMA/DCS/PHS/TD-SCDMA/WCDMA/CDMA2000/WIFI/GPS, VHF, UHF signals.

$469.19 $839.49
Portable 16 Antenna Signal Jammer Sale Cheap Block GSM 3G 4G 5G GPS WIFI
Portable 16 Antenna Signal Jammer Sale Cheap Block GSM 3G 4G 5G GPS WIFI

The newest hidden antenna portable jammer for cell phone, design 16-band all-in-one frequencies that block all cell phone signals, LOJACK GPS, WiFi, RF signals and an interference range of 2 to 20 meters (depending on the Signal strength in a certain area).

$739.99 $1139.99
Wholesale WIFI and GPS Desktop Phone Signal Jammers the best stationary cell phone blockers
Wholesale WIFI and GPS Desktop Phone Signal Jammers the best stationary cell phone blockers

Match with a wireless remote control, convenient and interference control machine operators can stand at any Angle, in addition to more interference GSM and 3G, it can also interfere with GPS and Wifi signals, 315MHz, 433MHz, 868MHz remote control frequency interference combinations are also provided for you. 

$263.89 $453.89
The Newest Cell Phone Signal Jammer 8 Antennas 3G 4G Signal Blocker With WIFI2.4G / 5G In Indoor
The Newest Cell Phone Signal Jammer 8 Antennas 3G 4G Signal Blocker With WIFI2.4G / 5G In Indoor

The Latest 8 Antennas Adjustable 3G 4G Phone signal Blocker with 2.4G GPS, also is a good quality multi-functional LOJACK UHF VHF WIFI5G and Remote control 433 315 MHz signal jammer.High output power, Total up to 18W and jamming up to 40 meters, importantly silkscreen OEM service can be offered.

$576.99 $976.99
10 Bands Desktop High performance 5G cell phone jammer
10 Bands Desktop High performance 5G cell phone jammer

A high power jammer product designed and built for medium to large environments that runs 24 hours a day, 365 days a year. It is capable of interfering with all phones including the new 4G LTE 5G and WIFI bands. Each individual band can be adjusted separately.

$699.99 $1199.89
WIFI GPS DCS PCS signal jammer
Latest desktop high performance 5G 4G 3G WiFi2.4G WIFI GPS DCS PCS signal jammer

The latest 8 antenna high power signal jammers can interfere with GPS 5G WIFI UMTS 4G LOJACK signals, with interference ranges of up to 40 meters, and are widely used in various areas to ensure your privacy.

$659.43 $989.69
High-quality 8-antenna Wifi signal jammer Adjustable 3G 4G phone signal jammer
High-quality 8-antenna Wifi signal jammer Adjustable 3G 4G phone signal jammer

It's also good quality multifunctional wifi 2.4G 5G and 3G-4G cellphone jammer, adjustable and built-in fan, if you are looking for easy to use and powerful signal blockers? that you see here is then suitable for you.

$483.29 $783.29
3G 4G CDMA GSM PHS WIFI Blocker High Hower Phone Jammer
3G 4G CDMA GSM PHS WIFI Blocker High Hower Phone Jammer

The desktop high power jammer has superior interference frequency type and jamming range with total output power of 15W, it designed to eliminate all telephone communications. It allows you to block both CDMA GSM DCS PHS 3G 4G WiFi networks.

$330.69 $490.89
Powerful signal blocker with external fan interferes with GSM UMTS 4G GPS WiFi LOJACK signals
Powerful signal blocker with external fan interferes with GSM UMTS 4G GPS WiFi LOJACK signals

8 antenna desktop non-adjustable high power multiband mobile phone jammer is made of aluminum alloy with excellent texture, which is a good choice for your home or office use. As you can see, two cooling fans provide thermal protection for the interference device, so as not to be damaged due to the high temperature,ensure that the host working stability. Jamming with the frequencies very wide, GSM / 3G / 4G, GPS / LoJack, WIFI, jamming radius of up to 40m.

$342.80 $639.58