Cell phone service blocker - blocker jammer rf shielding

Adjustable Cell Phone WiFi Blocker & UHF VHF Jammer with Bulit-in Directional Antenna

Product Description

If you are just in need of signal blocking service, trying to find an effective and easy-using gadget for it, do not miss out this adjustable cell phone Wifi & UHF VHF jammer with built-in Directional Antenna.

In many cases, there will be necessity now and then for us to prohibit the use of gadgets like such mobile phone, walkie-talkie, Wifi devices and so on. For example, occasions like conference room, law court, examination, hospital may require isolation of mobile communication gadgets. Or serious locations such as government building, military camp finance, police etc, where there are a lot of information of great significance of to be kept confidential, jammer will be needed to avoid information leakage through all those wireless transmission communication gadgets.

The multifunctional blocker mentioned can work well for the situation. The jammer is designed to block multi signals as GSM, CDMA, DCS, PCS, 3G, Wifi, UHF, VHF. Constructed with efficient thermal aluminum shell, the jammer is able to work for continuous 24h.

The phone and wifi jammer is also featured with built-in directional antenna, which makes it much easier to be concealed. The adjustable jamming range is 1-25m, depending on the signal strength in area given.


  • Shielding Range:

-CDMA 870-894MHz   
-GSM  930-960MHz   
-DCS 1805-1880MHz  
-PCS 1930-1990MHz  
-3G  2110-2170MHz   
-WiFi 2400-2500MHz
-VHF 135-175MHz
-UHF 400-470MHz

  • Power supply: AC adapter(AC110V/220V-DC5V)
  • Single output power:+35dBm / 2W
  • Output Power:16W         
  • Jamming range: Up to 25m(-75dBm, the jamming radius still depends on the strength signal in given area)
  • Safety regulation:AC Adapter UL (E190582) /CSA (LR112971 Level 3)
  • Temperature: -40 to +55?i>
  • Relative humidity: ≤90%(RH)
  • Air pressure:86~106kPa
  • Weight:5kg
  • Dimension: 390(L) x 300(W) x 120(H) mm


  • Cell Phone WiFi Blocker & UHF VHF Jammer
  • Power Cable


This product is in stock now, we guarantee shipping within 24 hours and offer 1 year warranty for all our products. Brought to you by the leader in security devices and best Signal Jammers, Jammerall.

Important Notes for Jamming Distance: The jamming distances we mentioned on website are for customer's reference only. The actual jamming distance will be varied depending on the signal strength and the use location and if full charges, etc.

Important Notes for Portable Jammers with No Cooling Fan: Do not use the jammer when it is charging, or it will burn the jammer as it has no built-in fan. If because of this factor due to the broken of the jammer, the customer will lose the authority of free repairation .

cell phone service blocker

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