Thank you for viewing. The item is "Chordcat" by AlphaTheta. It's a compact 8-track groovebox. This electronic instrument supports music composition, making it easy to create various chord progressions. You can easily create songs by combining rhythms, basslines, chords, riffs, and more. It clearly supports both simple and complex chord progressions. This compact body is packed with the instruments and theory needed for composition. You can save your finished creations as they are, or move the data to another sequencing software to further refine them. If you're interested, searching "Chordcat" on YouTube is the easiest way to understand it. I bought this after seeing it on YouTube myself. I purchased it new in the summer, and after trying it out for a few hours with batteries, I didn't have much time to use it, so it's been sitting unused. It's in almost new condition, and all the accessories are in pristine condition. The included USB cable is also unused. I haven't been able to use it much, so I'm listing it now that I finally have a little time at the end of the year. It operates via USB power or six AA batteries.