Chase Bliss Audio Wombtone Analog Phaser Six knobs to control Ramp, Volume, Feedback, Rate, Depth and Form ModuShape gives user full control over shape and midpoint of modulation wave Tap Tempo stomp switch with divisions 16 dip switches in back of pedal gives control of ramping parameters and expression Analog Presets that can be recalled on-the-fly via toggle switch or with MIDI controller