The Hobbywing Eagle 30A Brushed ESC is a compact and reliable speed controller for brushed motors, featuring smooth and precise throttle response, selectable brake and battery type via jumper, and multiple protection functions including low-voltage cut-off and overheat protection. It supports 2–3 cell LiPo or 4–10 cell NiCd/NiMH batteries and delivers up to 30A continuous current with a 1A/5V BEC for safe and efficient operation.