Practical Motor Drive Module Controller for RC Model Toy Car Plane ,RC Boat ,Car Tank ,Rock Crawlers High Quality Features: 100% brand new and high quality All devices are original and genuine to ensure the reliability of electric regulation. Compatible with various remote controllers and receivers. It has smooth and delicate speed regulation feel and good linearity Used in mini car, mini model aircraft, mini UAV, mini multi rotor electric control, 360 degree continuous rotation steering gear, etc Compact and lightweight, easy to install and use.Electric speed controller with brake. volage range: 5volt Size:20x5x5cm/7.87x1.96x1.96inches Package Includes: 1 x Micro Electronic Speed Controller ***Adabi Rc Hobby***