Features: Auto hover can be realized by one key. Four flight modes: normal, auto-balance, auto-hover and gyro off modes. Three kinds of wing: standard, delta-wing (flying-wing) and V-tail. Three working frequencies for servos: 50Hz, 125Hz and 250Hz. Separated gain adjustment for each flight mode, automatic stick centering. Supporting HV (7.4) operating voltage. In support for Futaba S.Bus / S.Bus 2. Easy to use, extremely suitable for beginners. Specification: Item Name: A3 flight controller Material: Metal Input Voltage: 5 - 7.4V Servo Travel: 1520 500s Gyroscope: 2000dps Accelerometer: 4g Operating Temperature: -40 to 85 degree Size: Approx. 43 * 27mm / 1.7 * 1.1inch Weight: 29g Type: RC Model Vehicle Parts & Accs Package List: 1 * Flight Controller Stabilizer 1 * Set of Parts 1 * Manual