Thank you for viewing. This is an MXR Dyna Comp. I believe I bought it within the last 10 years. I purchased it new at the time. There are some minor scratches, but it's in relatively good condition. It's a classic compressor, no explanation needed. I tested the sound for the first time in several years, and I thought it sounded normal and usable. Accessories include the box and instruction manual. Please feel free to comment if you have any questions.