Item Details: 100% Band new and high quality High rate PWM Low resistence Low torque start Soft start ramp up Max Current: 40A Input Volt: 6V - 12V Constant Current: 30A Weight: 26g (Net Weight) User programmable brake Throttle range self-adjusting Auto motor cutoff with reset Size: 56mm x 24mm x 8.5mm Auto shut down when signal is lost Runs motor in forward or reverse Sixteen cells Max (with BEC disabled) Low-Voltage Cutoff: Auto detect and set Low voltage auto setting based on battery Safe power arming program ensures motor will not run accidentally after turn onPackage Includes: 1 x MYSTERY 30A Speed Controller ESC