LEGO Technic App-Controlled Transformation Vehicle 42140

Build the first LEGO Technic transformation vehicle and experience an innovative 2-in-1 set. It contains 772 pieces that allow you to construct both an aerodynamic tracked racing vehicle and a research truck. The vehicle is compatible with the CONTROL+ app for steering and offers exciting features such as rollovers and changing screen views. Ideal for playing in the most extreme terrain.