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Have a device that can jam cell phone signals?

Jo G. Jul 9, 2018 19:05

Sometimes we have to put up with loud phone calls in public places like cinemas. Most people want to block their cell phone signal when they watch a movie. But the phone still bell rings. That time, we will think, if can let the bell stopped...

Fortunately, we can buy a device called cell phone signal jammer on the Internet at present. In this case, you can turn on your cell phone jamming device