4Pcs Original Hobbywing Skywalker 50A UBEC Brushless ESC 2-4S 5V/5A BEC for 450-650 RC Quadcopter Airplane

features high performance, high-qualitycomponents and impressive craftsmanship. It is the best choice for beginners. Feature: 100% brand new with high quality Timing can be changed to be suitable for different brushless motors The maximum current can reach 65A Full protection features: low voltage cut-off protection / over-heat protection /throttle signal lost protection Throttle range can be configured to provide best throttle linearity, fullycompatible with most market available transmitters Discounted at only: US$ 77.52