Racerstar RS20A V2 20ABlheli S BB2 48MHZOPTO 2 4S ESC Support Oneshot42 Multishot 16 5 Dshot600 for FPV RacerSpecification Manual Brand Name RacerstarItem Name New V2 RS20A 20A ESCModel RS20A V2Con Current 20APeak Current 10s 25AInput Voltage 2 4SBEC NoProgramming YESFirmware Blheli SNet Weight 5 67gSize 27 12mmFeatures Chips on EFM8BB21F16 48MHZ Greatest BLHeli S is designed for superior performance in multirotors and uses hardware generated motor pwm for smooth throttle response and silent operation Small size combined with light weight for easy installation The code supports regular 1 2ms pulse width input as well as Oneshot125 125 250us Oneshot42 41 7 83 3us and Multishot 5 25us 16 42 D shot The input signal is automatically detected by the ESC upon power up All codes use damped light mode Damped light does regenerative braking causing very fast motor retardation and inherently also does active freewheeling The code supports features to prevent sync loss There are tuneable parameters that can make the code run well even in the most demanding situations although default settings will work excellently in normal operating environments The code also supports a beacon functionality where the ESC will start beeping after a given time of zero throttle This can be very useful for finding lost crafts Package Included 1x Racerstar RS20A V2 20A ESC