Features: -Diffirent mos from the Racerstar RS Series esc. - BLHeli_S is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation - Chips on BB1, 24MHZ . -Support Oneshot42, Oneshot125, Multishot, Dshot150 and Dshot300. - Small size combined with light weight. -All codes use damped light mode.Damped light does regenerative braking, causing very fast motor retardation, and inherently also does active freewheeling