MXR - Classic 108 Fuzz (Mini). Now in an MXR mini housing, this pedal gives you all the same vintage fuzz tones in a much smaller footprint. Like its larger predecessor, it's loaded with the silicon BC-108 transistor for a round and dirty crunch. It also has the same no nonsense control interface - just crank the volume and fuzz controls to your liking and start riffing. Use the buffer switch on the side to make the fuzz play nice with wah pedals. True hardwire bypass. Powered by 9 volt battery or AC adaptor (ECB003).