- Water-proof and dust-proof for all-weather races. (Note: please uninstall the cooling fan before using this ESC in water; Clean and dry it soon after the use for avoiding the connectors get rusty.) - External programming port, easy to connect to the Program Card when setting the ESC. - Proportional brake with 4 steps of maximum brake force adjustment and 8 steps of drag brake force adjustment. - 9 steps of acceleration (/punch) adjustment from soft to Very aggressive to fit for different kinds of models, tires and tracks. - Multiple protections: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection / Motor lock-up protection. - One-button (the SET button on the ESC) to set the ESC, and easy to reset all parameters to the factory default settings. - Compatible with the optional device ---- the portable Digital LED Program Card, especially convenient for outdoor use.