The Violet pedal is an easy to use tremolo pedal with a classic style designed circuit and gorgeous warm tones. This effect pedal comes with three controls for volume, rate and depth plus a toggle switch which selects between triangle and square wave-forms which allows you to make the effect sound more cutting. When the rate control is backed off and slowed down, Flattley have explored some of the slower speed tones which emphasize the chorus style tones and Lesley style speaker effects.