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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. 2g 3g 4g Signal Booster, Cell Signal Booster , 4g Cell Repeater , At&T Signal Booster 5g ,At&T Wireless Signal Booster . 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,Brasilia, Romania,Jordan, Toronto.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.