dear manager , greetings to you! glad to take this opportunity to introduce ourself as a direct security&telecom factory since 1995, professional produce following products *mobile signal jammer *mobile signal booster and repeater all of products have passed ce certification. signal jammer it can block mobile signal and not interfere base station, it is available to classroom, meeting room, bank, church, hospital, cinema, library, prison, gasoline station,etc. signal booster it can pick up signal from base station, then enlarge base station signal in poor signal area, it is available to subway, basement, lift and other poor signal area. here i attached catalogue with details as per your request. if necessary, pls feel free to contact us whenever and whatever you want. hope to built up long term business relation with you. welcome to visit our factory and website

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