Buttery smooth vintage analog sound with variable mix control. Ultra-warm, with full range response this little gem adds shimmer to lead licks or swooshing resonance to muted strumming.. Variable feedback control adjusts from classic phase signature to an almost Wah Wah like effect. Vary the speed from a subtle, long cycle to a Leslie like swirl. This is a highly versatile, classic analog tone box.ControlsSpeedDepthFeedback and Mix controlsTrue bypass footswitchRuns on 9v or 18v.