So what is this device ?
Perhaps its a similar type of device, to this, which shows fiducial ways to control music.
NB In applications of virtual reality, "'fiducials'" are often manually applied to objects in the scenery to recognize these objects in images of the scenery. For example, to track some object, a light emitting diode can be applied to it. With the knowledge of the color of the emitted light, the object can easily be identified in the picture.
This is well worth the click.
