Bought in 2004-ish at Music Makers. Very lightly used since. "Function" key's not working any more due to sitting around, but am sure it's a simple solder fix. Programming, sequencing and sound selection still work perfectly without it. Comes with original box and manual.
Zoom's original marketing specs:
https://www.zoom.co.jp/products/rhythm-machine/rt-223-rhythmtrak-drum-machine