?The EMAX BLHeLi Series 40A 3-6S 3A/5V UBEC for Multirotor runs on BLHeLi firmware and has been optimized for better linearity and quicker throttle response・ definitely your ideal choice! All parameters can be programmed via a program card or a transmitter・ including default settings. You can even program the rotation direction to normal・ reverse or bidirectional. Moreover・ it is built with multiple protections against low-voltage・ cut-off・ overheating・ and throttle signal loss. Designed specifically for multirotors・ it is compatible with RC aircraft and helicopter with fixed wings. Click and buy now!                                    Features             Run on BLHeLi firmware・ optimized for better linearity and quicker throttle response<br> All parameters can be programmed via a program card or a transmitter・ including default settings<br> You can program the rotation direction to normal・ reverse or bidirectional<br> Built with multiple protections against low-voltage・ cut-off・ overheating・ and throttle signal loss<br> Inbuilt alarm helps you find the device: keep the throttle on FULL OFF position for a while and the ESC will beep<br> Throttle range can be configured to fit different receivers   <br>                                                            Specifications             Continuous Current     40A    <br> Burst Current     50A    <br> Battery     2~6S    <br> BEC Output     3A / 5V    <br> Programmable     YES    <br> Material     PC    <br> Weight     1.45oz / 41g    <br> Color     Black    <br> Dimensions     (2.87 x 1.1 x 0.47)" / (7.3 x 2.8 x 1.2)cm (L x W x H)     <br>                                                             Package Includes            1 x EMAX BLHELI 40A UBEC<br>