Standard gives the familiar sweeping flange, while Ultra produces a deeper and more pronounced effect. Gate/Pan chops the flanged signal in mono and pans it between outputs in stereo.

In Momentary mode, the effect stays on only while the pedal is held down. Holding the footswitch in the other modes enters tap tempo, so the sweep can follow a song.

Res, Manual, Depth and Rate shape the sweep and its resonance. Separate guitar and bass inputs set the response for each instrument, and two outputs allow stereo use. Bypass is buffered, and the pedal uses the standard BOSS compact enclosure.