Anself 40A Brushless ESC 2-4S Electronic Speed Controller with 5V 3A BEC for Airplane Aircraft Helicopter Boat FPV F450 Quadcopter

Safe on Function: When is on, motor will not be started immediately no matter throttle rocker is in any position to injury. Throttle Stroke Calibration Function: Adapt to difference of throttle stroke of different remote control, improve linearity of throttle response, with smooth, delicate speed control feel and first-class speed regulation linearity. Low Voltage conservation Mode: Reduce /turn off output, default is to reduce . Low Voltage conservation Threshold: Low/medium/high, default is Cut-off discharge voltage. 40A Brushless Electronic Speed Controller with 5V 3A BEC 3.5MM Banana Head for Airplane Aircraft Helicopter Boat FPV F450 Quadcopter. If there are any problems, please our store in time.