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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. China 4G Mobile Signal Booster and Cell Phone Signal Booster, External Cell Phone Antenna , Cellular Phone Booster , 850mhz Signal Booster ,At&T Cell 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,Burundi, Somalia,Cancun, Morocco.China factory Lintratek focuses on selling signal amplifiers to Africa, Asia, Europe, North America and South America market.