
via
this auction
Anyone know what these sound like?

via the auction:
"This has a drum machine or beatbox, with cheesy analog beats programmed in. Adjustable Tempo and styles. It has a bass synth note that plays patterns underneath, in time with the drums, and in the key of the bass note you hold (black keys on bottom octave). It has a GREAT lead synth - very much like the ARP Pro Solist or MOOG Minitmoog. There are various Presets. The Space Junk sound,(which was the inspiration for the Devo song of the same name!), is alone worth the price of admission. There is also a panel on the Right side for creating your own lead sound. There are outputs on the back (1/4") and tuning controls for the bass and synth. Last (but not least!!) it has built in SPRING reverb. Adjustable from "barely on" to "WOW" all the sounds run through it - it's on the drums, bass, lead if you want it. And the maximum setting is very dark and long, underwater sounding."
Also see
this one.
Shot of the inside.