This limited edition wah pedal decked out in A Dying Machine graphics started with Morley's world-famous electro-optical circuitry and switchless design and added a boost knob that allows a full 20dB of wah gain that cuts through the mix. The Wah tone is the perfect hybrid of a traditional and modern wah voiced to Mark's preferred frequency & sweep. Equipped with our clear-tone buffer circuitry that translates your guitar personality and tone while maintaining full output. Roadworthy housing, powers from one 9V battery or optional Morley adapter. Equipped with LED indication, cold-rolled steel housing, quick clip battery door and one year warranty. Works with guitar, bass or keys! The TrueTone Bypass buffer circuit ensures pure guitar tone and maintains signal level in bypass and wah mode.