Pioneer CDJ-2000, manufactured in 2004, with a dedicated cover and power cable. No box or instruction manual. When starting up, the error message "E-8709 COMMUNICATION ERROR" may appear. However, if you insert a CD, turn the power off, then turn it back on and immediately long-press the eject button, it works without any problems. After that, I had no issues inserting CDs. The USB function works without any problems, and there are no other particular issues. I believe it's a used item in good condition, but please understand that it is a used item nonetheless.