This is the Novak Edge 2S Brushless Electronic Speed Control with Traxxas Type Battery Connector. FEATURES: Ideal for all types of racing, including 2WD Short Course, Off-Road On-Road and Sportsman classes Twelve adjustable parameters Voltage cut-off circuitry for LiPo and LiFe batteries NovaBrakes offer smooth controlled braking under any condition Compatible with all ROAR legal sensored 540 motors 10.5 turns and higher and all 380-size sensored motors Meets ROAR Sportsman Class guidelines One touch programming interface with five colored status LEDs On board Hall sensor test checks operation of motor sensors Thermal overload protection 120 day limited warranty through Novak beginning at date of purchase INCLUDES: Novak Edge 2S Brushless Sensored ESC with Traxxas Type Battery Connector and Instructions REQUIRES: Installing in vehicle and connecting to motor and battery SPECS: Design: Sensor based Size: 1.15 x 0.95 x 0.66" (29.0 x 24.3 x 16.8mm) Weight: 0.69oz (19.5g) without wires Input Voltage: 2S LiPo/LiFe cells or 4-7 NiMH cells (1.2V/cell) Motor Limit: 540 (10.5T and higher) sensored brushless motor, all 380 sensored brushless motors On-Resistance: 0.00057 ohms @25° trans. temp BEC: 6.0V DC/2.0 amps Status LEDs: Five Voltage Cut-Offs: 6.25V (LiPo), 4.75V (LiFe) Power Wires: 14G Super-Flex Copper-Strand Silicone Wire jxs 09/27/11 ir/jxs