Thank you for viewing (please read to the end) I bought this out of curiosity 7 years ago and tried it out, but I couldn't use it well, so I put it back in the box and have kept it stored ever since. Power-on confirmed. USB connection and keyboard operation confirmed. It looks clean, but this is just my amateur opinion, so please refer to the photos to make your judgment. A compact MIDI keyboard with 25 keys and 8 pads. - Model name: MPK mini - Number of keys: 25 keys - Number of pads: 8 pads - Number of knobs: 8 knobs - Accessories: With box (USB cable not included) *Due to concerns about item substitution, cancellations after shipping are not accepted.