It powers up fine and is in good working order - plays the demos and all the rotary knobs, buttons and scratch pad work, none missing. Was used once or twice after purchase 20 odd years ago, so apart from being a bit dusty seems to have lasted well! Had a friend test it who actually has some knowledge and skills and they were able to work it well and produce some impressive sounds and effects that I didn't know were possible!

Power supply is missing, I tested it using my router cable but see you can purchase replacement cables. It also takes batteries. I don't have the original packaging, but do have the hefty instruction manual, which is scruffy but should be helpful.

Dimensions: 334mm x 334mm x 126mm

Power Adapter: PA-5B, PA-5C; AC100V 50/60Hz

Batteries: 6 x “D” size or SUM-1 or R-20

Patterns: Total approx 700 preset patterns and variations

LED Controllers, Scratch Pad, Filter Knobs, Live Effector Knobs, Cross Fader.