I am selling this item because I bought it but haven't had a chance to use it. I only used it for practice at home. Please check the photos for any scratches or dirt. × Adapter not included. → I found a 18V adapter, which I think came with this effector, so I will include it. Using this allows you to cut unwanted high frequencies before applying distortion, etc., allowing you to create tones different from your guitar's or amplifier's tone. It has 10 bands, so you can make fine adjustments. *Patch cables are included as a bonus. Search terms: Guitar Electric Guitar Bass Effector Equalizer