1Powerful ESC: Dual channel drainage, can quickly cool down, is an excellent choice to improve the performance of remote control boats. 2Durable Material: Made of high quality electronic components, fine workman, strong anti interference ability, durable, long service life. 330A RC Boat ESC: Adopts novel circuit design, high power load with servo, lower power consumption, which helps to improve the overall performance. 4Built in BEC Switch: Embedded SBEC is super simple and convenient to operate, and parameters can be configured through transmitter or program card. 5Connection Method: Connect the brushless electronic governor to the receiver. Connect the three motor wires to the ESC with the corresponding colors. Connect the power cord of the XT60 plug to the battery to power on. Item Type: 30A RC Boat ESC Colour: Black Support Lipo: 2-4S BEC: 5V/3A Nimh: 5-12 Plug Type: XT60 Weight: Approx.65g/2.3oz Material: Electronic Components Continuous Current: 30A Instantaneous Current: 40A (10 Seconds) Power Cord Length: Approx. 100mm/3.9in Size: Approx. 70x27x17mm/2.8x1.1x0.7in Compatible Model Length: 450mm/17.7in Model 1 x 30A RC Boat ESC1. Please allow 13mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Waterproof designs (Note: If there is no water in the ESC, please dry the water in the connector).