13-in-1 Models Building Sets BEHOWL technique building blocks contain 550 parts and can be assembled into 13 models: tank, tracked racer, plane, robot, fighter, bulldozer, truck and so on. Its design features beautiful lines and includes many realistic details and functions. Interesting and innovative building block toys allow children to explore different possibilities, enhance imagination, and improve motor skills. Remote and APP control BEHOWL technique car can be controlled through Bluetooth connection in mobile APP. It includes 4 modes to control: remote control mode, path mode, gravity sensor, and programming mode. In addition, it can also be controlled through a 2.4GHz remote control. The remote control distance of the building block vehicle exceeds 20 meters. Make your experience more flexible and easier to control.