Electro-Harmonix have put two of their classic Muff Fuzzes in one compact Nano-sized box to make the Double Muff. You can use one for some creamy distortion and add the other for wild overdrive. It has two simple controls and a footswitch. The original 1969 Muff Fuzz had a light overdrive for the sound of a ‘vintage amp with a torn speaker’. The Double Muff also features true bypass.