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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. Homemade Phone Signal Booster, Rv Cellular Antenna , Mobile Phone External Antenna , 4g Amplifier ,Gsm Signal Repeater . 11 year telecommunication manufacturer Lintratek,Focus on supply good telecommunication environment to people all the world. The product will supply to all over the world, such as Europe, America, Australia,Austria, Gabon,Oslo, Iceland.Lintratek has focused on manufacturing and selling products of telecommunication for about 20 years.