1) No harm to mobile phones: this jammer only prevents mobile phones from transmitting or receiving signals only when they are in the jamming range.
2) Can function stably and continuously under various environments.
3) Green and environmentally friendly device, no harm to human and objects.
4) Rapid adapting: based on sensitivity status of each mobile phone, normally within over ten seconds after being turned on, the signals for all types of mobile phones will be disabled in the working range. And a couple of seconds after it being turned off, all the mobile phones will be back to normal again.

Supported Frequencies:

GSM: 920-965MHz
DCS: 1800-1880MHz
3G, UMTS: 2110-2170MHz
4G Low: 790-880MHz
4G High: 2620-2690MHz
WiFi 11.b & g: 2300-2500MHz
GPS L1: 1575.42MHz ± 10MHz
Lojack: 173MHz

Working Radius: 10-30M, Note: The range varies depending on operator's distance from BTS cell jammer.
Output Power: 18W
Power supply: 220V power supply or 12V car cigarette lighter socket

Package contents:
Black Jammer main unit x 1
Antenna x 8
AC Charger x 1
Car Charger x 1

Why Buy From Us?
1. Top opening with double fans for heat dissipation-- high power & lower temperature.(stand out from other 8 Antennas Desktop jammers on the market)
2. High-grade customized Antennas, small in size but with high transmitting distance.(other similar jammers' antennas on the market are big in size and with bad effect)
3. One year warranty. (while other sellers only offer 3 months)
4. The jammer will be customized according to the frequency used in each customer's country, so the frequency will match better and with better jamming effects.


  • Under different using sites, the effective jamming range will also be different, because the jamming range is closely related to signal strength of given site. To cell phones with different systems/standards, the jamming range to will also be different.
  • Factors that influence the jamming radius include but are not limited to: the distance away from the cell tower base stations, orientations, with/without obstacles, the materials of building wall in given site, the jammer installation height and standard, and so on.
  • Each Antenna is marked with its frequency band, and must be installed in consistence with the frequency mark on the main unit. Before switching on the jammer, you must make sure that each Antenna has reliable connection with the main unit. NEVER switch on the jammer without connecting the Antennas!!
  • After continuously working for long time, the surface temperature is about 40-50 ℃, which is normal. In case the surface temperature is over high, please cut off power and try to contact your supplier.
  • The normal installation height should be about 1.8-2.5 meters. Try to install the jammer on the site that there is no obstacles in the target jamming range.

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Desktop 8 Antennas 2G 3G 4G WiFi GPS LOJACK Signals Jammer

  • Product Code: 8TZHUOMIAN
  • Availability: In Stock
  • £209.00

  • Ex Tax: £209.00