Spektrum 6630 DX6i 6CH DSMX Radio System with AR610 Receiver This is the DX6i 6CH DSMX Radio System with AR610 Receiver.Includes AR610 Receiver and software for airplanes and helicopters as well as benefits like ModelMatch technology and 10-model memory. The combination of its Simple Scroll interface, easy-to-read LCD screen and simplified menu navigation will immediately put first-time programmers at ease. Many programming functions like throttle curves and expo are graphic