Motors C Series Brushelss F Series Brushless Frio Series Brushless H Series Brushless ESC Athena Series Apollo Series   ECS : Athena series   Specification Model (amp) 18, 28 CPU 12khz BEC at 3S lipo 4 Micro Servo Pograming Card N/A Programing Feature Brake On/Off Yes Motor Timing Auto Timing Batter Type selection Lipo