Mark Tremonti Signature Wah Mini Pedal. Features: His signature Wah offers a mix of classic and modern tones. Switchless operation; Simply step on the treadle to engage the Wah and step off to bypass. Built-in Boost; Add up to 20 dB of clean boost. True Tone Bypass buffer circuit ensures pure guitar tone and output. Rugged cold-rolled steel housing, LED indication, quick clip battery door. Powered by one 9-volt battery or optional Morley 9 V adapter. Compatible with most 9 V adapters. Dimensions: 17 x 11 x 6 cm. Limited to just 500 pieces worldwide.