Wireless signal jammers block radio waves from base stations and create an out of service area. It needs to be quiet, like a concert hall. There are a lot of inconveniences, it's limited to spaces where radio waves need to be blocked. It's unpleasant to use on your phone if you're in a place where you can't talk. Use out-of-service devices considering the impact of annoying phone calls. I activated the WiFi Jammer
and placed it outside the service area, blocking signals from nearby phones.
Here's the explanation for the blockage of mobile 4G radio waves. It is increasingly being introduced to banks and hospitals. Annoying phone calls that ignore etiquette are obvious. It can interfere with other radio stations such as cell phones. It won't adversely affect other electronics and comes with a $1-$100 WiFi Jammer
. It can also be used to jam trackers. Long continuous operation time. Blocking radio waves is the easiest and most reliable method you can get for cheap.