FlySky FS-GT2B 2.4GHz 3-Channel Transmitter with FS-GR3C ReceiverAFHDS (Automatic Frequency hopping Digital System), is developed by FLYSKY for all the Radio Control model lovers and is patented by FLYSKY at home. The system is specially developed for all the Radio control models, that offers super active and passive anti jamming capabilities, very low power consumption and high receiver sensitivity. With extreme rigorous testing by engineers and studying the markets for years, FLYSKY AFHDS is now considered to be