Featuring two independent footswitchable settings, three unique reverb algorithms allow the user to create multiple soundscapes. The sustain switch generates massive atmospheric creations for an out-of-this-world tonal experience.Designed by Fender’s in-house tone gurus, the Dual Marine Layer is an all-original Fender circuit. The chassis is crafted from lightweight, durable anodized aluminum, and the LED-backlit knobs show your control settings on a dark stage at a glance.