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CPJ25 High Power Portable Cell Phone Jammer

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Quick Overview

If you want to protect your privacy at home or in office then you should try this high power portable cell phone jammer.

CPJ25 High Power Portable Cell Phone Jammer

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CPJ25 is the powerful GSM jammer which has effective cooling fan with air slots. Forget about hot frame of your jammer because now it has awesome cooling! CPJ25 can work day and night with strong jamming signal covering blocked area. Air slots help cooling process and make it great along with fan. Strong rubber antennas would not break when you will hide your jammer inside some bag or pocket.

CPJ25 Powerful Handheld Mobile Phone Jammer

CPJ25 can use its battery to work for a few hours without instant power supply. For longer usage there are power adapters to supply your mobile phone 3G jammer. When this jamming monster is turned on, all cell phones in up to 25 meters radius will be silent. Even during conversation mobile phone will be cut off within 30 seconds.

CPJ25 Powerful Handheld Mobile Signal Jammer



  • European and American GSM and 3G frequencies blocked
  • You can make 15-25 meters of silent space radius
  • Powerful cooling fan with air slots for long work
  • You can use power adapters or battery as power source
  • Increased jamming range and blocking power due to improved cooling




CPJ25 Powerful Portable Mobile Phone Jammer

  • European Frequencies: GSM900 and GSM1800, 3G
  • American Frequencies: GSM850 and GSM1900, 3G
  • Blocking Power: 75dbm
  • Covered Area: 15-25 meters
  • Power Sources: Rechargeable battery and two power adapters
  • Operating Current: 1000mA - 1200mA
  • Battery Info: 8.4V 2600mAh Li-ion battery works for two to two and half hours, recharges for two and half hours
  • Power Adapters: Car adapter 12V~12VDC, AC adapter 110-250V~12VDC, each 2000mA
  • Antennas Data: 3 x Rubber SMA antenna, strong 3db each
  • Dimensions Info: 110 / 189x63x34.5mm
  • Weight Data: 280g / 800g (jammer / package)
  • Temperature Regime: 0C~50C
  • Humidity Info: 5%~80%


CPJ25 is very useful GSM signal jammer with perfect cooling and broad jamming range. You can use this mobile signal blocker to successfully jam all cell phones around you in specified radius, and no matter you are in Europe or America.

CPJ25 Powerful Portable Mobile Phone Jammer with cooling

Installation and Operation

At first screw three isotropic antennas in their slots. After that you can turn the power on. At the side panel you can see indicators of power on and charging. There is also a slot for plugging power adapter in. Cooling fan and air slots help CPJ25 to work 24/7 with bigger power and wider jamming radius.