Giving you a rainbow of overdrive possibilities, the Electro-Harmonix Crayon Full-Range Overdrive is truly colorful -- and versatile. With separate controls for bass and treble, you can harness the lush sound of the Crayon and shape it to build your perfect drive tone. The full-range Crayon is a relief from your typical mid-focused drive pedals, serving up a wider range of frequencies and allowing you to carve out your sound from a smudge of dirt to verging on full distortion.