Mooer Audio micro effect pedals pack an incredibility BIG sound into a very small package. Our Black Secret captures the legendary "Rat "sound into a micro pedal. Two modes give the flexibility to switch between a warm, smooth, vintage distortion sound and the turbo mode that gives more than twice the maximum output of the vintage mode, for a more powerful distortion sound. The Black Secret uses the classic LM308 chip. All Mooer pedals have a 1 year warranty.