I purchased this new and have kept it in storage without using it. There is a faint 1cm scratch in one place, but otherwise, it's in pristine condition. This is an overdrive effector, equipped with three control knobs: LEVEL, TONE, and DRIVE. It uses true bypass. - Brand: GREEN - Model Name: noah's ark - Country of Manufacture: Japan - Control Knobs: LEVEL, TONE, DRIVE - Effector Type: Overdrive Thank you for looking.