This is very popular with a cell phone jammers. It can interfere with wifi, 3 g, 4 g, GPS and other signals. At present, this kind of equipment is very popular in the United States
Employees are prohibited from using cell phones in the bathroom
Received questions
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Recently, I noticed a very bad phenomenon in my company, that is, employees spend a lot of time in the bathroom. As far as I know, most people watch video in the bathroom or log on to facebook. How to stop it?
Second floor
According to your description, it's likely that a phone jammer was placed in the church.Usually once the cell phone jammer is turned on, around five seconds, the signal will start to disappear.I suspect this is a measure taken by church workers to keep quiet during prayer
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