Welcome to Musicdungeon! You are looking at a great piece. This is the Electro Harmonix Good Vibes Pedal. The Good Vibes pedal from EHX recaptures the iconic chorus/vibrato effect of the 1960's in an updated pedal, with features for the modern player. Like the original Uni-Vibe, the Good Vibes uses photocells (a light-bulb reflecting in intervals on tiny internal cells) to create chorus and vibrato with a warm, undulating groove. Boosted power rails provide modern definition and headroom, and an expression pedal input allows control of speed or intensity. Jimi would be proud. We are an authorized Electro Harmonix dealer. Buy with confidence. Don't pass this by!