It will be PIONEER's CDJ-500II Professional.

It's from the 90's and 00's, so it can almost be called vintage, but the sound is thick and has a strangely analog feel.

I've been using it as a DJ recently, so I can confirm that all functions work.

Loading is fast, but sometimes the sound would skip when playing CDs that I burned myself.

Laser pickups for reading CDs have a limited lifespan.

I think it is in good condition for its age.

I probably haven't read it or ejected it since I bought it.

I think if you tighten the reading laser screw a little, the sound skipping will be more stable.