This is a standard overdrive pedal for bass from BOSS. It can handle everything from a subtle distortion that you can leave on all the time to a more extreme distortion for special effects. It can also be used as a booster by turning down the balance. Power-on tested. Thank you for viewing. Immediate purchase is OK! There are scratches and dirt. Body only. Please check the condition in the photos. The item will be wrapped in bubble wrap and packed in a recycled cardboard box or paper bag for shipping. We will ship within 2-3 days of purchase via Yu-Yu Mercari, Rakuraku Mercari, or Eco Mercari. Please understand that this is a used item.