Icos One is a partial icosahedron (a convex regular polyhedron composed of twenty triangular faces) with only fifteen faces showing.  Five of the verticies contain motion sensors which "activate" the Icos as participants walk up to it at night. 

Ten of the faces have a movable triangular panel that can be pulled out and rotated in one of three orientations.  As the panel is rotated, the face colors change.  Once a pre-defined mathematical color pattern is reached,  the Icos reacts with a light show and audio consisting of pre-recorded ambient playa sounds, short speeches related to the American Dream, and off-beat songs played at a reasonable volume.