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Handheld Cell Phone Blocker 16 Bands 5G Jammer

How to choose cell phone jammer

Perfectjammer 2022/07/12

  Cell phone jammers gps are produced to reasonably avoid and interfere with mobile phone related signals, such as GPS, WIFI, 2G, 3G, 4G, or the future 5G. It is mainly used in school examination rooms, prisons, detention centers, etc., to ensure fairness and impartiality of examinations, or the usual written tests.

  Shop around to select products, conduct extensive research and learn more: conduct research on product quality, technical means, and brands; through online search, preliminary understanding and communication with technical personnel, listening to technical explanations

  On-site demonstration to see the effect: choose several manufacturers, go to the scene to test and demonstrate the shielding effect;

  Investigate the actual effect of the cell phone jammer case: It is best to bring the mobile phone into the shielding area after approval during the inspection to verify the shielding effect.

  Simple and quick way to judge the device of cell phone jammer:

  1. The area that should be shielded is not strictly shielded, and it costs money and effort to be ineffective;

  2. The area that should not be shielded is seriously disturbed, complained and cannot be used normally;

  3. There is a gap between over-biased detection and pseudo base station technology, ideal and reality

  Unsuitable cell phone jammer devices

  1. Small size, the host and power supply are separated, and a circuit board is used inside;

  2. It needs to be equipped with a protective box, which is small in size and light in weight;

  3. The natural heat dissipation area is small or a fan is used to help heat dissipation;

  4. There are many air circulation inside and outside the equipment, and the inside is easy to corrode



Adjustable Box Type Hidden Antenna Wifi Cell Phone Jammer

Hidden Antenna Cell Phone Blocker

The self-developed wall-mounted mobile phone WiFi signal jammer consists of an antenna, a radio frequency amplification unit, a multiplexer, a main control board, an intelligent cooling system, and a power supply system. Using electronic countermeasures, it emits electromagnetic waves and cuts off downlink phone signals and WiFi signals within a radius of 50 meters. Then cell phones and wifi don't work in that area and people can't receive or transmit cell phone wifi signal there. It can interfere with all 2G 3G 4G 5G mobile phone signals and WiFi signals, with large coverage and good interference effect, completely blocking all mobile phone signals.

$1147.99$1663.99

Tactical Jammer Device

6 Bands Military Hidden Handheld GPS WiFi Jammer

I have been averaging at least four unwanted calls each day. Telling these people that your number is on the National Do Not Call List does not stop them. I did not want to change my telephone number and pay to have it unlisted. I read about the cell phone jammer online, and I decided to buy it. Set up took about three minutes. I then tested it out by using my cell phone to call myself. I blocked my cell number...

Date Added: 05/14/2019 by Natalie Carrie