【High-Quality Rhythm Generation】 BOSS's Dr. Rhythm DR-770 is the perfect rhythm machine for professional music production. It's equipped with a wide variety of drum sounds and patterns, supporting creative music production. 【Intuitive Operability】 Featuring 16 pads and control knobs, you can easily create and edit rhythms. Adjusting volume and values is also intuitive, allowing for smooth operation. 【Diverse Connection Options】 Equipped with MIDI IN/OUT and audio output terminals, connecting to other devices is easy. It can flexibly adapt to your music production environment, making it useful in various scenarios. - Brand: BOSS - Model Name: Dr. Rhythm DR-770 - Color: Blue - Control Knobs: Volume, Value - Pads: 16 pads - Connection Terminals: AC Adapter, MIDI IN, MIDI OUT, Audio Output - Design: Slim design I lost the power adapter during a move. It can be ordered from musical instrument stores. The market value is increasing, so If you're looking for one, please consider it. Although it's been quite a few years, It's in good condition with no noticeable scratches, but There's tape on the back. I think it can be peeled off cleanly with some effort. Thank you.