BOSS DS-1 - Model: DS-1 - Brand: BOSS - Type: Distortion - Power: 9V battery compatible - Controls: Tone, Level, Distortion Thank you for viewing. The legendary BOSS distortion, the DS-1. Its core, gritty distortion is the very essence of rock. I am selling it because my musical style has changed and I no longer use it. It was used in live performances, so the body has numerous scratches, but there are no issues with its operation or sound. You can use it from the day it arrives. The contact points will be cleaned before shipping. Questions are welcome. Thank you.