Analog Wah/Phaser/Vibrato/Tremolo
This is for the smaller (XO) version of the pedal, produced from 2008-present. It includes an expression input for manual control of the phase position of the various effects. It uses a 24V DC power supply included with the pedal.
http://www.ehx.com/products/worm
This Pedal is currently available.
$105