The AR7000 combines an internal and remote receiver, offering superior path diversity. The radio system simultaneously transmits on two frequencies, creating dual RF paths. This dual path redundancy, plus the fact each of the two receivers is located in a slightly different location exposes each to a different RF environment and creates a bulletproof RF link in all conditions. AR7000 Key Features - 7 Channels - Internal and remote receiver - DuaLink - DSM2 Technology - Compatible with all DSM2 systems (eg DX7, DX6i, DSX9) - ModelMatch prevents flying a model using the wrong model memory (feature does not work with module systems) - ServoSync (feature does not work with module systems) - SmartSafe fail-safe system