This mini V8 engine model kit realistically simulates a sports car V8 and makes the inner workings visible. The buildable model includes detailed components and transparent cylinder heads on both sides so you can watch the pistons move as the engine runs. It is a handson educational kit designed for mechanical enthusiasts, hobbyists, and STEM learning. Key benefits Realistic visualization: Clear cylinder heads and moving pistons let you observe how a V8 engine operates in real time. App programming and control: Connect with a smartphone app to enter programming mode, adjust speed, and see internal reactions as you change settings. Ready to run without batteries: The kit includes a USB rechargeable motor and USB charging cable for electrical drive operation. Educational and practical: Building the kit develops mechanical understanding, creativity, logical thinking, and problem solving. Displayable and collectible: Finished model works as a compact display piece for home, office, or workshop. Features V8 engine model with realistic details and visible internal motion Smartphone app control with programming mode and variable speed adjustment USB charging motor included; no batteries required Transparent cylinder heads on both sides for piston visibility Miniature, buildable kit intended for handson assembly and learning Use scenarios Desk display and conversation piece: Assemble and run the model on a shelf or desk to demonstrate engine mechanics to visitors. STEM classroom or workshop activity: Use the kit as a teaching aid for lessons about pistons, cylinders, and basic engine operation. Mechanical hobby project: Build and program the engine to explore engineering concepts and practice troubleshooting and assembly skills. What is included V8 engine model kit USB rechargeable motor USB charging cable This compact V8 engine kit combines realistic detail, smartphone programming control, and visible piston motion to make mechanical learning engaging and practical without the need for batteries.