The Korg 40x was created to emulate the feeling of sliding in the old video game cartridges to an NES. Korg had created 16 different cartridges to swap in and out to create all sorts of different effects in whatever order you wanted them in. This pedal includes the Octave V, Compressor, Overdrive, Flanger, Digital Chorus, and Digital Delay effect. All effects can be swapped in and out and engaged at once or all together. This Korg is in good condition with aging along its top and scratches on the top and bottom of the pedals.