Similar to the Zvex Seek Wah, the Zvex Ooh Wah II is a tremolo/wah that has a sequencer and random mode. Eighth wah settings for the sequencer with either 4, 6, or 8 steps give you a variety of sounds, and you can change up your speed with the Ooh Wah II's tiny speed knob. Take a queue from Frank Zappa's "Ships Ahoy," which this pedal emulates perfectly, and stomp on the mode switch for a randomized bandpass filter.