The Tone City Summer Orange delivers warm and authentic phaser tones which fit a variety of playing styles. It is a dead simple pedal effect, Feedback, Rate and Depth knobs controls will get you what you need and it's mini casing will fit to the smallest of boards. Remember that like all Tone City mini pedals, the Orange Summer does not take batteries. Tone City says that it is based on an infamous Orange Phased pedal, we believe it is no other than the MXR Phase 90.