How many cell phone signal blockers are needed to ..

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How many cell phone signal blockers are needed to completely block the signal of a 200 square meter conference room | #jammer

How many cell phone signal blockers are needed to completely block the signal of a 200 square meter conference room

How many cell phone signal blockers are needed to completely block the signal of a 200 square meter conference room

The area of the conference room is 200 square meters, and the length and width are 20 meters * 10 meters. Some customers ask how many mobile phone jammers need to be equipped in such a conference room, and what is the approximate price of the mobile phone signal jammer? Will it be ov

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