ITEM NAME:Xrotor 2-6S Lipo 30A /Brushless Esc No Bec High Refresh Rate For Multi-Axle F2O9 Xrotor 2-6S Lipo 30A /Brushless Esc No Bec High Refresh Rate For Multi-Axle F2O9 Features: 1.1 Rotor dedicated program, fast throttle response, beyond the various types of open source software; 1.2 Specifically optimized firmware disc motor, the motor has a very good compatibility; 1.3 Highly intelligent, adaptive ability, extremely easy to use;1.4 Throttle signal line is a twisted pair, copper wire to reduce crosstalk signal generated within the transmission, so that more stable flight; 1.5 Supports up to 621Hz refresh rates up to the throttle signal, compatible with a variety of flight control (Note: More than 500Hz signal of the throttle throttle are all non-standard signal)1.6 Use MOSFET special driver chip, performance and stability far beyond the driving circuit with discrete components built 1.7 Ultra-low resistance MOSFET, strong resistance to current capacity;1.8 Exquisite plastic case back with high brightness LED navigation lights.1.9 Power transfer comes on the back of the micro DIP switch for setting LED navigation lights on / off, LED light color, into the steering angle and the motor. Newest APAC Version Brushless ESC , Perfectly Compatible Flight control and Motor BEC:NO Lipo battery: 40A ESC 2-6S 20A ESC 3-4S 10A ESC 2-3S Colour: Black Material: pvc Package include:1 * X-Rotor ESC.Lipo battery 40A ESC 2-6S. 20A ESC 3-4S. 10A ESC 2-3S.