Welcome, you are looking at a great piece.This is the MXR M169 Carbon Copy Analog Delay Guitar Effect Pedal.The MXR Carbon Copy analog delay features an entirely analog audio path, delivering rich, warm delay using old-school bucket brigade technology.The Carbon Copy boasts 600ms of delay time, with optional modulation via a top-mounted switch, and its simple three-knob layout gives you complete control over Delay, Mix (dry/wet blend), and Regeneration (delay repeats) – 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 make this MXR Carbon Copy analog delay the perfect addition to any pedalboard.We are an authorized MXR dealer.Buy with confidence.Don’t pass this by!