The high-voltage XL-5^™ HV electronic speed control for TRX-4^® and TRX-6^® trucks handles up to 11.1 volts of 3s LiPo power. In addition to the three standard profiles (Sport, Race, Training Mode^®), the XL-5 HV features a Trail profile that serves up a little bit of drag brake for smooth intuitive driving for most of your adventures. A separate Crawl profile introduces hill hold and instant reverse for extremely technical courses.