Welcome, you are looking at a great piece. This is the Moog Minifooger Flange Effects Pedal. The new MF Flange from Moog is a 100% analog bucket brigade based harmonic manipulator with a dedicated voicing switch and mono or stereo output capabilities. The two-position Type switch toggles between two voice modes: vocal or traditional flanger. Dial up the Rate and shift from a liquid flange to a jackhammer rhythmic pulse. Pin the Depth and go from mild to mulit-octave sweeps. The expression pedal input is assinged to the Time control, and allows you to manually sweep through the delay frequency range for unique and creative effects. The MF Flange from Moog is a stellar analog flanger pedal with amazing tones and deep tonal flexibility. We are an authorized Moog dealer. Don't pass this by.