Young technology fans can choose between eight robot models. You can construct a humanoid robot that is equipped with two motors and an ultrasonic sensor and thus reacts to its environment. Or a robot crocodile that attacks and snaps when it gets dangerous. The instructions explain step by step how to build the models, how to program them and control them with a tablet or smartphone via Bluetooth. The corresponding free app already contains seven programs with which the various robots can be set in motion immediately.