-QR880 DUAL Brushed ESC: Suitable for 1:8 / 1:10 All purpose -Waterproof and dustproof for all weather races. -Please make sure to uninstall the cooling fan before using this ESC in water. -Clean and dry soon after use to avoid rusting the connectors. -Fully waterproof design for all conditions. (Note: Please clean and dry it after use for avoiding rusty connectors). -HOBBYWING patented copper heat-conductive plates attached to the MOSFET board allows the internal heat to be quickly transferred to the aluminum heat sink for great heat dissipation. -Built-in switch-mode BEC with cont. current of 4A. -Tunable drag brake and drag brake rate for different vehicles, tracks, and control feel. -Adjustable PWM frequency combined with advanced freewheeling (/DEO) technology guarantees great throttle linearity and driving feel. -9 levels of acceleration/ punch from soft to aggressive for different vehicles, tires and tracks. -Proportional brake with 9 levels of initial brake force, maximum brake force, and drag brake force. -Multiple protections: low-voltage cutoff protection, thermal protection, and throttle signal loss protection. -Separate programming port to easily connect the LED program card (purchase separately) to the ESC. -ESC programming via HOBBYWING LED Program Card (purchase separately). -WP-880-DUAL BRUSHED ESC has two outputs to drive 2 motors. When driving 2 motors simultaneously, the Turn of the motors needs to be increased.