Converting guitar or bass sound into an analog synthesizer-like sound, this pedal was inspired by vintage synthesizer pedals and mini synthesizer keyboards. Suboctave, Envelope, and Fuzz with 7 Sliders to Set Sound Creates a high presence and destructive sound that is unique to analog Internal switch allows you to switch between 1 or 2 octaves, and set the amount of feedback on the phaser. VOL: Overall output level SENS: Envelope filter sensitivity RANGE: Envelope filter range BRIGHT: Overall EQ FUZZ: Fuzz signal level RATE: Phase signal speed SUB: Sub-octave signal blend Power 9V: 006P/9V battery or 9V AC/DC adapter