Phase 45 and Phase 90 circuits in a mini housing with about half the footprint of a standard MXR pedal. The 45/90 switch toggles between the Phase 45 mode's subtle two-stage phasing and the Phase 90 mode's more pronounced four-stage phasing, while the - Script" switch toggles between two phasing styles. The Phase 95 is set to modern style phasing by default, which relies on feedback to create light harmonic distortion and gives the effect a more accentuated swoosh. Engaging the Script switch removes feedback for a lusher, more subdued sound with higher headroom and greater clarity. The familiar speed control sets the rate of the effect. True hardwire bypass. Cannot be powered by a battery. Supplied with 9 volt AC adaptor (ECB003).