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The 6 antenna hand-held portable GPS GSM 3 g 4 g wifi signal jammers have multiple signal frequency band combination, your outdoor portable design makes it easy to use, can also be used for your car, home, office, etc. It has many characteristics that make it very popular in the signal jammer market. In addition, it is used in schools, courts, churches, prisons and other places where mobile phones are banned. If you need it, it now has the best quality, competitive price sales.

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