This is the Mamba Monster 2 25V Electronic Speed Control from Castle Creations. FEATURES: Compatible with on-road, buggies, truggies and monster trucks running up to 6S LiPo batteries and weighing up to 15lbs (6.8kg) Waterproof design allows running in nearly any environment (see COMMENTS below) USB programming capability via the Castle Link USB adapter (CSEM6300 Solder posts allow battery wire length and direction to be easily changed One year limited warranty through Castle Creations beginning at date of purchase. Warranty does not cover abuse, neglect, or damage due to incorrect wiring, over voltage or overloading INCLUDES: Mamba Monster 2 25V ESC with Cooling Fan, On/Off Switch, Fan Plug, Motor Wires, Receiver Wire with Connector and Instructions SPECS: Input Voltage: 2S-6S LiPo Max Continuous Amperage: 120A full continuous operation with cooling airflow BEC: User selectable output between 5 and 7 volts Brake: Proportional Revesible: Yes, with lockout Dimensions: 1.86 x 2.19 x 1.33" (47 x 56 x 34mm) Weight: 3.93oz (111.5g) without battery connector COMMENTS: Not intended for use while submerged in liquid. If operated in wet conditions, rinse with fresh water to remove dirt or corrosives then fully dry unit. Fan is not water resistant. Remove fan from ESC before exposing vehicle to liquids. jxs 01/14/13 ir/jxs