This 20A electronic speed controller is equipped with high-quality components to ensure its high quality, especially its excellent current resistance capability. ^^ The BLHeli-S firmware offers excellent throttle performance. ^^ The BLS firmware supports DSHOT60O digital signal and enables the adjustment of parameters through the BL program. ^^ The exposed PCB solder joints are convenient for welding with the motor wires. ^^ It is small in size (24x12x5mm) and lightweight ( 5.4 g). It is easy to assemble and makes the flight more sensitive.