Specification:          A3 Mini is a high-performance and functional 6-axis mini gyro and stabilizer designed for R/C airplanes. The smaller size and more compact design make it more suitable for the small electric airplanes. With the new feature of multi-protocol serial receiver support, it could be compatible with most single line mini receivers on the market.                    Specification          Main Controller:32-bit MCU          Sensor:High-precision MEMS 6-axis sensor          Operating Voltage:DC 3.6V - 8.4V          Operating Current:20mA@5V          Size:30×19.5×7.5mm (L×W×H)          Weight:4.8g (excluding wires)                    Features          Mini size and 4.8g weight, PPM and multi-protocol digital serial receivers supported.          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, NORMAL, LOCK, ANGLE, LEVEL and HOVER modes.          Flying-wing (Delta-wing), V-Tail, Remote Master Gain.          Firmware upgradable and Programming Card supported.          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