Featuring four speed controllers integrated in one board￡? the Original Hobbywing SkyWalker 25A 4 In 1 Brushless ESC Speed Controller will be a powerful addition to your multirotor. The high-performance ESC is equipped with multiple protections￡? including low voltage cutoff protection￡? overheat protection￡? and throttle signal loss protection. The throttle range of each ESC can be calibrated to suit different multirotor flying control systems or transmitters. Plus￡? it has built-in BEC of switching mode. Don?ˉt hesitate to buy now!                                    Features             Four speed controllers integrated in one board<br> Equipped with low voltage cutoff protection￡? overheat protection￡? and throttle signal loss protection<br> The throttle range of each ESC can be calibrated to suit different multirotor flying control systems or transmitters<br> Built-in BEC of switching mode (BEC voltage outputs from the S3 connector)<br> Easy to install <br>                                                            Specifications             Brand     Hobbywing    <br> Constant Current     25A    <br> BEC Mode     Switch Mode    <br> BEC Output     5V / 3A    <br> Input Voltage     2-4 Cells Lipo￡? 5-12 Cells NiMH    <br> Suitable for     RC Model￡? Quadcopters￡? Airplane    <br> Dimensions     (3.03 x 1.38 x 0.55)" / (7.7 x 3.5 x 1.4)cm (L x W x H)    <br> Weight     2.22oz / 63g       <br>                                                             Package Includes            1 x 25A Brushless ESC<br>