HEXBUG acts like a really cockroach does when make a sound big enough it’ll start turning automatically by feels its way around sensing objects in its path and avoiding them. And it can even hear and change its direction when it hits an obstacle! You can control where it scurries through a hand clap, loud noise or table slap. The robotic bug will travel forward until it hits an obstacle or hears a loud noise. It will then backup in a half circle and then move forward in a different direction. Size: 7(W)×11(H)×9(L)cm