Features: Safe Power on Function: When the power is on, the motor will not be started immediately no matter the throttle rocker is in any position to avoid personal injury. Throttle Stroke Calibration Function: Adapt to the difference of throttle stroke of different remote control, improve the linearity of throttle response, with smooth, delicate speed control feel and first-class speed regulation linearity. Low Voltage Protection Mode: Reduce power/turn off the output, the default is to reduce power. Low Voltage Protection Threshold: Low/medium/high, the default is Cut-off discharge voltage. 30A Brushless Electronic Speed Controller with 5V 2A BEC 3.5MM Banana Head for Airplane Aircraft Helicopter Boat FPV F450 Mini Quadcopter. If there are any problems, please contact our store in time. Specifications: Item Name: 30A Brushless Electronic Speed Controller Continuous Current 30A, Instant 35A, 40A for 10 Seconds. Type: XT60 Plug Size/Weight: 45*24 *11mm, 27g (Including Cable) Voltage Range: 4V-16V BEC: 5V 2A Batteries Quantity: 2-4LIPO (4LIPO does not Allow BEC Output) 2LIPO: 4-5 Miniature Steering Engine 3LIPO: 3-4 Miniature Steering Engine Protective Function: Automatically select 2-3LIPO, the protection voltage is 6V/9V respectively Automatically select NIMH, the protection voltage of each section is 0.8V Safe for start up, Wrong throttle position, forbidden to start. Temperature protection, 110 degrees surface temperature, stop. Out of control protection, no signal after 1 second, stop. Performance Description: The upper limit of the speed is 210,000 rpm in 2 poles, 35,000 rpm in 12 poles, and 42,000 rpm in 14 poles. 8KHz PWM control with speed control curve. Automatic throttle adaptation for more remote control devices. With BEC, MCU separates power supply and works more stably. Package Information: Package Size: 12.8*9*3cm Package Weight: 28g Plastic Package Package List: 1* 30A Brushless ESC