How to choose a cell phone jammer?

  • Hello everyone, I need to buy a cell phone jammer in the classroom. As a teacher, I really can not stand the students have been ignoring me, has been staring at the cellphone.
    So, what kind of jammer do I need to choose?
  • If you want to jammer cell phone signals for students, then I suggest you use a jammer that can blocker 2G 3G 4G signals. Basically interfere with the above signals, the students can only see the blackboard.
  • Hello alexy!
    Given your situation, the jammer that suits you needs to meet the following two points:
    1. Can blocker GSM / CDMA, 3G, 4G and other cell phone signals
    2. At least jammer range 15-20 meters, to ensure that cover the entire area of the classroom
    You can choose the jammer according to the above criteria. Hopefully my answer is of help to you
  • The administrator's suggestion is very worthy of reference.
    Given the current mainstream signal in the United States, you may need to interfere with CDMA, 4G signals.
    If your school covers WIFI, you may need to have the ability to interfere with WIFI.
    In addition, considering the range of interference, you may need a high-power interference device with output power adjustment function.

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