KOMPLETE KONTROL MIDI controller with 61 keys and dual LCD displays. I purchased and used this about 5 years ago, but I'm selling it to clear out my equipment. The D key on the left side of the keyboard is slightly raised, but it responds without any problems. There might be a slight difference when playing in real-time, so please consider this if you understand. (Personally, I didn't find it particularly inconvenient when using it for composing.) The sound source transfer code is not included. Only the main unit will be provided. - Model Name: KOMPLETE KONTROL - Number of Keys: 61 keys - Display: Dual LCD displays - Functions: MIDI controller, transport control, preset function - LED: Blue LED backlight - Control Knobs: 8 encoders Thank you for looking.