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Lintratek China factory manufacturer supplies 1-5 band signal booster to enhance smart cell phone signal receipt, product verified by CE, FCC, certificate. Mobile Signal Boosters, Tri Band Gsm Signal Booster , 4g Extender , 4g Amplifier ,Gsm Repeater . Lintratek Cell phone signal booster 1-band, 2-band, 3-band, 4-band, 5-band,Applicable scenes are cafes, supermarkets, factories, hotels, office,buildings. The product will supply to all over the world, such as Europe, America, Australia,Cambodia, St. Petersburg,California, Russia.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.