Package includes: 1x Motor Speed Controller Notes Please allow 12 cm errors due to manual measurement. Please review before ordering. Due to differences between monitors, the picture color may not reflect the actual item. OOTDTY Using electronic circuits and integrated components, long service life. Key benefits Provides adjustable motor speed for precise control in your projects. Built with electronic circuits and integrated components for reliable operation and long service life. Simple to integrate into a variety of applications with a compact, straightforward design. What this product does Delivers controllable speed to a motor, enabling smoother performance and tunable responsiveness in your setup. Usage scenarios Hobby robotics and RC projects where motor speed tuning improves maneuverability and responsiveness. Educational kits and DIY experiments to demonstrate speed control concepts and observe how changes affect performance. Small automation or prototype projects that require variable motor speed for testing, calibration, or adaptive operation.