Readytosky Bidirectional 20A Brushless ESC 2-4S 2A 5V UBEC Electric Speed Controller for RC Car Boat Underwater Propeller

Features: This product adopts imported components, full power test. It can be used in cars, ships, underwater thrusters. Bidirectional 1:1 power output, no brake,direct reverse, quick response, good handling. No need to calibrate throttle stroke, plug and play. All products contain UBEC output. Package Included: 1 x Bidirectional 20A ESC Note: 1. When using, the remote control throttle remote lever must be in the middle position, otherwise it cannot start. 2. There is no need to calibrate the throttle stroke. When the electric adjustment is started, if the motor starts to rotate, you can use the remote control to fine-tune the throttle to stop the motor.