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1-band, 2-band, 3-band, 4-band, 5-band cell phone signal booster, for different scale space: home, office, hotel, factory, shopping mall, business building. Optic Fiber Repeater, At&T Cell Phone Signal Booster , 4g Cellular Repeater , Lte Signal Repeater ,Yagi Directional Cell Phone Antenna . Lintratek have R&D Studio, Warehouse, Storehouse, Showroom, Headquarters Office.... We can supply you product certificate and testing report if you need. The product will supply to all over the world, such as Europe, America, Australia,Sevilla, Indonesia,Birmingham, Malaysia.Lintratek has been focusing on signal amplifiers for more than 20 years, specializing in the sale of 1-band 2-band 3-band 4-band 5-band.