Cell phone signal blocker is illegal, but in some cases, such as the examination room, the battlefield, special needs, using mobile phone blocker
can be a good solution to the prevailing situation.
Phone signal is not really the radiation, I think cell phone signal jammer
can give you the answer, you try to know, huh.
Someone told me that he needed to block some of the signal, I recommend this site (Mobile Jammer
) to him, and I hope to help him
We can use more equipment to solve the problem you are experiencing.