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Shenzhen Tinfull Technology Co.,Ltd (Brand:Runbo) is specializing in developing & manufacturing rugged smartphone with walkie-talkie, as well as other communication devices such as rugged tablet and two-way radio.we have our own R&D team(software/hardware) and manufacturer to meet customer OEM/ODM requirement,we have been distributing successfully our products and services to over 20 countries and areas such as USA, Russia, Europe, South America etc.