BOSS Pitch Shifter PS-6. There are some stains and minor scratches from use, but there are no issues with its operation. The rubber sheet on the back was peeled off when I purchased it used, and Velcro for BOSS pedals was attached. This is an auction for the main unit only (will be wrapped in bubble wrap). Please understand that this is a used item. - Model Name: PS-6 - Brand: BOSS Type...Electric Guitar Manufacturer...BOSS