Features: 120A/150A brushless Remote Control ESC suitable to most sport races External Programming Port: Easy to connect to the Program Card when setting the ESC The waterproof ESC offers all weather durability. Provide unparalleled control and power for serious remote controlled action. Suitable for hobbyists, competitive Remote Control racers, and enthusiasts looking for upgrades, this set is engineered to provide unparalleled control and power for serious remote controlled action. Specifications: Component: Metal, Plastic Size: Approx.6x5x3.8cm/2.3x1.97x1.5inch Type: 120A/150A Package Includes: 1 Set Electric Speed Controller Program Card note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.