Thank you for viewing! This is an analog modulation effect pedal primarily for bass. You can switch between three patterns: flanger, pitch modulation, and chorus. It has a deep effect and a unique sound. I used it with a guitar, and I thought it sounded pretty good. There are paint chips, scratches, and signs of aging on the knobs and enclosure. In my subjective opinion, it's in about average condition for a used item. Since it's a slightly older model, please check the images carefully. Before listing, I confirmed that it works with a 9V battery and a 9V AC adapter. Instant purchase is OK. I will ship it on the same day of purchase if possible, or at the latest, the next day. Thank you.