Advantages: This cell phone jammer can jamming a variety of signals, especially 5G signals. That's pretty cool. The range of disturbance is beyond imagination. insufficient: It takes too long to transport. It took me about 10 days to receive my product. Conclusion: In general, it is a very good jammers can meet the demand of most of my interference.
Review 12 Bands Powerful 5.8g WiFi GPS Blocker
It looks like a huge device. But the interference was surprisingly good. When it's turned on, we don't get any messages in our office :)