Korg TNB-1 Tone Booster. The way I've always felt this works is that it turns your passive guitar into an active guitar,just makes it sparkle more and take the lead… with adjustments for low and high frequencies, overall volume and a gain knob that gradually adds overdrive. When maxed out this gain becomes a completely insane, ass whoopin' fuzz-sound. Contacts, switches and jack sockets freshly deoxised. Works like a charm. Clearing out a bunch of pedals that somehow became superfluous over time so do check my other listings for combined shipping possibilities! Will ship insured to anywhere even Antarctica but ask me for a quote, prices for shipping within EU range from 10-30 euros depending on country.