Style K96211 (large size) V12 fullfeatured dynamic engine model, 1610 pieces. This precision model recreates the mechanical motion of a 12 cylinder engine while remaining a detailed display piece. Designed for handson assembly and realistic operation, it is compatible with Technic Cars. Key benefits True mechanical realism: Watch the crankshaft rotate, the 12 pistons fire in sequence, and the cooling fan run in sync for an accurate representation of a V12 engine. Multi sensory operation: Builtin motor provides a smooth idle, LED lighting illuminates the engine bay, and simulated smoke puffs from the exhaust pipes for striking realism. Requires 6 AA batteries, not included. App control and sound: Connect via mobile APP to adjust engine speed and trigger simulated engine sound effects for precise, operation. Educational and collectible: A challenging build that develops mechanical reasoning, patience, and understanding of engine mechanics while producing an impressive display model. Compatibility and integration: Designed to integrate with compatible Technicstyle vehicles and displays. Features Piece count: 1610 parts for a large scale, fullfeatured V12 model. Functional components: Working crankshaft, moving pistons, camshafts, gears, and synchronized cooling fan. Transparent cylinder head: Clear observation window lets you watch internal components and gear interactions during operation. Motorized idle: Internal motor enables smooth idle motion when powered. Lighting and effects: Builtin LED lights illuminate the engine bay; simulated smoke exhaust puffs from the pipes for added realism. App functionality: Mobile APP lets you change engine speed and reproduce realistic engine sounds. Power: Requires 6 AA batteries, not included. Use scenarios Display and demonstration: Use as a desktop or shelf display to demonstrate engine principles during study sessions, maker meetups, or hobby events. Integration with compatible models: Install into compatible Technicstyle car chassis to add an authentic V12 powerplant and visual detail to larger vehicle builds. STEM learning project or gift: Assemble as a handson STEM activity for adults and advanced builders, or give as a thoughtful gift for car enthusiasts, model collectors, and engineering hobbyists. What makes it stand out Fullfunction V12 simulation at large scale with 1610 parts. Transparent observation window for clear view of internal mechanics. Combined motor, lighting, simulated exhaust, and APP control for layered realism. Compatibility with Technicstyle vehicles for flexible display and integration. Contents and note Style K96211 (large size) V12 engine model, 1610 pieces, motorized and app controllable. Batteries not included. Follow included assembly instructions and APP setup for full functionality.