BOSS DS-2 Distortion Pedal. Made in Taiwan. Basically, if you distort with this, you can get the sound of guitars from several famous bands. There are scratches, dirt, and signs of use. There were no problems with the operation, but I was using a power cable, so I don't know about using batteries. I opened the battery cover for the first time, and there were characters written on it. I think it's okay. *Please refrain from purchasing if you are sensitive to used items.