Features: High quality PA to high receiving sensitivity;Short antenna, -size with 4CH output, especially designed for mini aircraft to save mounting space;Compatible with Futaba S_FHSS system, suitable for more transmitters.Description:Model: -RXF6603Operating Voltage:4.8V~8.4VDimension:38 x 18 x 8mmWeight: 4gNo. Of Channels:4CHAntenna: Single AntennaBind Procedure:1. Get the transmitter and receiver ready and close to each other within half meter (20 inches);2. Turn on the transmitter.3.Turn on the receiver4. Press and hold SW more than 2 seconds. When is complete,the LED in the receiverchanges to solid green.5. It could be failed to bind as the environment, please repeat the above stepsCompatibility:Compatible : Futaba S_FHSS / TM- RF Module remote control systemSuitable for Futaba 18MZ, 14SG, 10J, 8J, 6J,4PX, 7PX, 4PV, 3PV etc. S_FHSS remote controlMaterial: Plasticcolour: As shownPackage Contents:1 x ReceiverOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.