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5 Antenna Band Portable Mobile Phone Signal Blocker Jammer

3.00 out of 5
(1 customer review)

model number 8312



5 Antenna Band Portable Mobile Phone Signal Blocker Jammer

Product Description

Although this era is an era belongs to the cell phones and computers, there are still many places where cell phone use is not permitted, such as the meeting room, tribunal, and classroom and so on. Besides, cell phones are strictly prohibited in those confidential places to avoid the leak of the confidentiality. Although we cannot let everybody keep their mobile phones off, we can install the cell phone signal blocker jammer to solve this problem. Regarding this point, we are excited to recommend you this 1~10m 5-Band Portable Cell Phone Signal Blocker Jammer.

This is a perfect device for all those areas that require quietness and seriousness to help keep undisturbed and confidential. With the special design, this powerful Portable Cell Phone Signal Blocker Jammer can give you magical effect you never experienced before. Compatible with 3G/GSM/CDMA, this 5-Band Portable Cell Phone Signal Blocker Jammer is designed to be placed either on a table top or inconspicuously on ceilings.

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  • Isolating Signal Bandwidth:

– CDMA/GSM: 860-970MHz

– DCS/PHS: 1805-1930MHz

– 3G: 2110-2170MHz

  • Single Output Power: +30dBm/1W
  • Power Input: AC110V-240V
  • Power Output: DC8V 3000mAh
  • Temperature: -40 to +55℃
  • Jamming Range: Radius 1~10 meters (Cellular signal must ≤-85dBm in the location), the jamming radius still depends on the strength signal in given area
  • Safety Regulation:  AC Adapter UL (E190582)   CSA (LR112971 Level 3)
  • Relative Humility: ≤90%(RH)
  • Air Pressure: 86~106kPa
  • Dimension: 110 x 62 x 30mm (Not Include Antenna)
  • Weight: 300g


  • Jammer
  • AC adaptor
  • Car adaptor
  • Antennas


Note: 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.

Reviews (1)

1 review for 5 Antenna Band Portable Mobile Phone Signal Blocker Jammer

  1. Vikram
    3 out of 5


    The RF reflecting back into your anetnna is destablising the curent/voltage in both anetnna and feed coil. Adding your ground has provided an RF earth path for them, previously the outer shield of your coax would most likely have been radiating it (even with an ATU). This may account for the loss in performance since adding the earth. Adding radials to one side of the anetnna will create some directionality. An RF choke at the feedpoint will help with common mode currents.Hope this help some

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