Audient EVO 4 audio interface. I used it at home for about a year. It was mainly used indoors, and there are no operational problems. All inputs/outputs, knobs, and buttons function correctly. There are no noticeable scratches, stains, or scuffs on the main unit, and it is in overall clean condition. The accessories are all shown in the photos. (Main unit, original box, USB cable) Please understand that this is a used item, and only purchase if you are comfortable with this. Immediate purchase is welcome. Please feel free to comment if you have any questions.