Features: 4 Flight Modes: Normal, Auto-balance, Auto-hover and Gyro Off modes 3 Wing Types: Standard, Delta-wing (Flying-wing) and V-tail 3 working frequencies for servos: 50Hz, 125Hz and 250Hz Separated gain adjustment for each flight mode Easy to use, extremely well-suited to beginners Specification: Item Name: A3 V2 Flight controller Input Voltage: 5 to 8.4V Servo Travel: 1520 500s Gyroscope: 2000dps Accelerometer: 4g Operating Temp: -40 ~ 85 degree Automatic stick centering The gyro can be attached flat or upright 4 mounting orientations supported Size: approx. 43 x 27 x13mm/1.69x1.06x0.51inch Notice: Actual color may be slightly different from the image due to different monitor and light effect The gyro must be firmly mounted on the platform of the airframe by using the provided double-side tape, as close to the CG as possible includes:1x Flight Controller Stabilizer System