This is the EB-575Wie Version, so it has interactivity and education features.

This is the Control Board with the buttons. Note the education version doesn't have buttons, but there's a PCB there still with no buttons soldered on.

This is the IR Remote Sensor

The other two arrows are IR Blasters for the interactivity and one to detect if something is infront of the lens (a safety feature)

The education version has an orange plate that sits ontop of where the buttons would be.