LEGO Technic designs are an excellent way for children aged 6 or above to learn and explore their interest in engineering while playing. These designs involve gearboxes, wheels, and axles that the children assemble themselves, enabling them to understand the intricate workings that propel cars, planes, motorbikes, and construction vehicles. The free CONTROL+ app can be used to enhance the sets by adding movement and sound to motorized LEGO Technic remote control toys. It also allows children to complete challenges and share them with friends. These sets are not only ideal for children but also make a great gift for advanced adult builders.