Darkglass Duality Fuzz - UsedThis Darkglass Duality Fuzz sounds great in just about every setting you dial in. The unit features two discrete fuzz circuits; a gated saw tooth wave and a raunchy high gain sound, which you can use on their own, or you can blend them together. Included are filter and blend knobs for tone shaping and ultimate control. The unit is in good condition, is fully functional, and includes the original box. There is Velcro located on the bottom of this unit.