Advanced Waterproof Design: The ESC series is engineered with a fully waterproof design, achieving an IP67 rating, ensuring safe operation in wet conditions, making it perfect for RC boating enthusiasts. Built-in BEC: Equipped with a built-in Battery Eliminator Circuit (BEC), this ESC provides reliable power to your RC boat's receiver and other components, enhancing performance and stability. Versatile Applications: Available in 30A models, the V4 ESC caters to a wide range of boats, from small scale models to larger crafts, offering precise control and efficient power management. Color: Black Material: Plastic+Metal Package Contents: 1 * V4 ESC Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.