Features: ●Align APS Lite has build in 3-axis accelerometer, 3-axis magnetic compass, altimeter, and GPS sensor to work with DSP processor to enable APS Lite to have precise detection and control abilities. ●For use with Align's 3GX flybarless system for ease of install and simplified setup, APSLite is functional with a few setup steps. ●Failsafe function, When helicopter lose RC signal, APS Lite will take over and fly the helicopter back to where the helicopter regains RC signal. ●Automatically helicopter stabilize function. When helicopter's attitude is not stable, switch to APS Mode will enable APS to immediately stabilize helicopter and provide a big help for the beginners. ●Supports Spektrum/JR satellite receivers and Futaba S.BUS architecture. ●Supports software upgrades.