The LEGO Technic App-Controlled 4x4 Mercedes-Benz Zetros Trial Truck (42129) is a 2,129-piece set that lets builders control an impressive off-road vehicle. With app-enabled control, this set combines engineering with interactive play. 

 Builders can take on rugged terrains, navigate obstacles, and explore mechanics in action. 

 Ideal for fans of technology and vehicles, this set offers hands-on learning with modern innovation.