This is the KORG plugKEY (Lightning compatible). It's a simple MIDI/audio interface that you can use just by connecting it directly to your iPhone/iPad. I got it along with a mini keyboard for a situation where I needed to play a few bars live, but I rarely actually used it. Therefore, the main unit is in almost unused, clean condition. I have confirmed that it works by connecting it to an iPad again this time. (See photos) * The iPad, amplifier, etc. shown in the photos are not included. [Included Items] ・Main unit ・Lightning integrated cable ・Instruction manual ・Outer box Only those who understand that this is a used item, please.