BOSS Metal Zone MT-2 effector. This is a listing for the unit only. No accessories are included. The unit has scratches and scuffs on the sides and elsewhere. I don't think they are severe, but since individual judgment criteria vary, please assess the condition by looking at the photos. I believe the functionality is fine, including no crackling. ▪️Features and Sound Characteristics • This pedal was released in 1991 and is positioned as a model that symbolizes high-gain distortion. • It features a distortion circuit with "tight, thick, and sustained" sound, and is widely used from heavy rock/metal backing to leads. • It has a 3-band EQ (LOW/MIDDLE/HIGH) + semi-parametric MIDDLE band control (MID FREQ), allowing boost/cut in each band. Especially, the variable range of the MIDDLE band is wide, allowing you to freely create the "midrange character" of the sound. ⚫︎Operation Knobs and Usage Hints • LEVEL: Pedal output volume (balance adjustment with bypass) • DIST: Amount of distortion (gain amount) • LOW: Adjusts the low frequencies (bass range) • HIGH: Adjusts the high frequencies (high end) • MIDDLE: Midrange (frequency boost/cut amount) • MID FREQ: Selects the center frequency of the midrange (changes the "position" of the midrange) ◆Recommended for whom/what purposes? • For those in hard rock/metal bands who want to give their guitar sound both "sharpness and weight." • Guitarists who want a strong, cutting midrange for solo leads. Thank you for viewing. Thank you in advance. Type: Electric guitar, distortion, overdrive, high gain, distortion, overdrive, Manufacturer: BOSS