Waterproof ESC for R/C crawlers. I purchased this for use with a Tamiya CC01 chassis from YSS Crawler for 8089 yen, but I didn't use it because I got a higher-end one. Someone, please use it. I'm sorry, but I'm already at a loss with the shipping and Mercari fees, so please refrain from price reductions. Maybe when a coupon is available... It's easy to use because it's Tamiya connector specification, and I think it can be used with a high-torque servo without taking a separate power supply. For high-voltage servos, connect directly to the battery.