This is the Mamba Monster 2 25V Electronic Speed Control and the Neu Castle 1512 1Y 2200kV Motor, from Castle Creations. FEATURES: Neu Castle 2200kV Brushless Motor; Ideal for 1/8 scale monster trucks using 6S LiPO batteries High quality oversized ABEC-1 front and rear ball bearings Sintered Neodymium magnets 6.5mm gold connectors with 10 gauge wires (OK to shorten) Mamba Monster 2 25V ESC; 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 2650KV Neu Castle Brushless Motor with 10 Gauge Leads, Connectors and Instructions SPECS: ESC, CSEM0800 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 Motor, CSEC0400 Max Input Volts: 25.2 Amp Rating: 120 Weight: 15oz (424g) Motor Diameter: 1.57" (39.98mm) 1.64" (41.78mm) with fins Motor Length: 2.9" (75.18mm) Shaft Diameter: 0.197" (5mm) Ball Bearings: Oversize ABEC-1 front and rear Connector: 6.5mm gold COMMENTS: Not intended for use while submerged in liquid. Fan on ESC is not water resistant. Remove fan from ESC before exposing vehicle to liquids. jxs 01/28/13 ir/jxs