This Wah is a tribute to the first production Wah Wah pedal ever made. This modernised classic captures the throaty voice and expressive sweep of the original Thomas Organ Company and Jen Electronic Wahs, with the addition of the - Holy Grail" of Wah components, the Dunlop HIO1 Halo Inductor, to minimise unpleasant micro- phonics common in the original. Update your board with this piece of history. Hardwire bypass. Powered by 9 volt battery or AC adaptor (ECB003).