The Carbon Copy boasts 600ms of delay time, with optional modulation via a top mounted switch, and its simple 3-knob layout gives you complete control over Delay, Mix (dry/wet blend), and Regeneration all in one incredibly compact pedal. For even more tonal options, you can also adjust width and rate control of the modulation via two internal trim pots. This pedal gives you everything from crisp bathroom slap echoes to epic delays, all with the simple twist of a knob. Stage-worthy blue LEDs and 9-volt operation round out the MXR Carbon Copy analog delay.