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DUMBORC, as the subsidiary of RadioLink, is responsible for the processing and assembly of all RadioLink products.RadioLink products for the retail market, products more tend to premium products. More and more car manufacturers suggest us to design a transmitter without a screen, this transmitter designed for car/boat manufactures that with high-end performance while low price to make sure the customers enjoy the most cost-effective RTR car/boat. So, we let our subsidiary DUMBORC launched a new period transmitters X4, X5, X6 since July 2019.Within the second half of 2...