Spektrum AR637T 6 Channel SAFE and AS3X Telemetry Receiver - BAGGED - SECOND HANDBAGGED SECOND HAND The AR637TA opens up a new era in receivers that will make it easier than ever for fixed wing pilots to transform their flying experience. The AR637T receiver is full range and compatible with any DSM2 and DSMX aircraft radios. Product Features Perfect for electric park pilots to large gas models requiring 6 Channels or less Built in AS3X Stabilization System with SAFE flight envelope protection AS3X and SAFE set up through forward