Can 4G jammers prevent cheating after 5G phones come out

  • TabithaEdward
    With the arrival of 5G, our life seems to have changed a lot. Our school is now facing such a problem. We need to purchase a batch of jammers to prevent students from cheating. However, I do not know whether the 4G signal interference equipment purchased will work properly after 5G is popularized. 
  • PerfectjammerPerfectjammer
    Hello, Tabitha
    Your concern is well founded. 4G cell phone jammer won't work when 5G networks arrive. Because according to the signal principle, only downward compatibility and not upward compatibility.  Therefore, once 5G signal appears, the interference equipment purchased now will no longer work. Therefore, the following 5G jamming devices will certainly replace 4G jamming devices

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