Castle Creations SW4 SENSORLESS ESC & 1406-4600KV Motor ComboWhile the all new SIDEWINDER 4builds upon Castles most popular platform, the SIDEWINDER 1/10 SCALE SERIES, it is the first of its kind to run Castles newest technology, CRYO-DRIVE. CRYO-DRIVEcombines technology from cutting-edge hardware and software advancements to increase thermal performance. COOLER TEMPS mean LONGER RUNS and MORE POWER in your SIDEWINDER 4 setup.Waterproof : YesTelemetry Capable : YesData Logging : NoAuxiliary Wire : NoMinimum Input Voltage : 2SMaximum Input Voltage : 3SSensored Capable : NoRecon G6 Certified ESC : NoROAR Certified ESC : NoAdditional Features:2s - 3s LiPo; 6 - 8 cell NiMH use in vehicles up 6.5lbs with battery, ready-to-run.Sensorless brushless and/or brushed motor operation.Waterproof design ESC and splash resistant 30MM fan*5.0 volts fixed, 2 amps Peak BECAudible alerts for error conditionsEnhanced drag brake functionalitySmoother sensorless startupsConvenient transmitter program