The M169 Carbon Copy is an authentically warm-sounding analogue delay pedal with a delay time of up to 600 ms. It gives your guitar sound those characteristically old-fashioned bathroom reverbs and delectably slow Pink Floydish delays. The guitar pedal - with the same dimensions and rugged housing as the classic Phase 90, for instance - can be adjusted via its three knobs and two internal controls. The M169 is a very rugged stomp box by MXR!