Digital sampler and loop sequencer. Also has a built-in reverb effect. This listing includes the main unit, instruction manual, and a stereo mini-cable for sync. The main unit has no noticeable scratches. It's white plastic, so it might appear slightly yellowed, but it's in good condition. Both AC power and AA batteries were tested and working. Sound output was confirmed from the LINE output and the built-in speaker. Operation has been confirmed, and linking with a PC is also good. You can find several user sound collections by searching on YouTube and the internet.