This is actually a cool and a simple creation even though it seems totally a waste of time. However the guy, who made this, could be considered to know some stuff about assembling stuff together. The sound seems all crappy and all, but still, it seems to be a cool audio device made out of the use of an old floppy drive. That circuit on the left is the gadget which controls the sound and it seems to be the gadget which produces the power to the device as well. Anyway, the guy has a good future if he tries to improve his skills in a productive manner.