ensoniq sq-80 cross-wave synth. everything works and sounds as it should. internal battery is out of juice so if you want to save patches and edits after you turn off the machine, just use the disk drive, which works. I will throw in a box of disks that work with it, which is what I've done. great synth. I will also include the 'hidden waves' eproms, I got them but never got around to installing them. I can ship it in a hard flight case if you want, came with it, but that may cost extra for shipping.