Main Controller: 32-bit MCU Sensor: High-precision MEMS 6-axis sensor Size: 43x27x14mm Features: Compatible with most standard PWM receivers, PPM and multi-protocol digital serial receivers. 32-bit MCU, high-precision 6-axis MEMS sensor, improved hardware platform and new firmware solution provide more reliable performance. 6 flight modes, including GYRO OFF mode, NORMAL mode, LOCK mode, ANGLE mode, LEVEL mode and HOVER mode. 3 wing types: standard fixed-wing, delta-wing(flying-wing), v-tail. Separated basic gain adjustment for Aileron, Elevator and Rudder. Remote master gain supported. Firmware upgradable (an optional data cable is required). Serial Receiver Protocols Supported: PPM Receiver Futaba S.Bus (compatible with FrSky SBUS, RadioLink SBUS and WFLY WBUS) Spektrum DSM/DSMX 1024 Satellite Receiver Spektrum DSM/DSMX 2048 Satellite Receiver Spektrum SRXL Multiplex SRXL / JR XBUS Mode B Graupner SUMD FlySky iBus