Jackson Audio Fuzz; Effects Pedal for Electric Guitar; Modular Fuzz with Octave; easily exchangeable Plug In Modules offer faithful and completely analog recreations of iconic Fuzz circuits; The 3-Band EQ & Switchable Octaver further expand the Pedals sonic versatility; 2 Modules included: Modern Fuzz & Classic Vintage Fuzz; (further Fuzz modules are available under item no. 515542, 515545, 515548 & 515550 - not included); Controls: Volume, Mid Freq, Fuzz, Bass, Middle, Treble, Vol, Blend, Oct; Internal Trimmer: Treb Freq, Treb Q, Mid Q, Bass freq, Bass Q; Push Buttons: ; LED: Fuzz On, Octave On; Display: ; Footswitches: Fuzz Bypass, Octave Bypass; Connections: Input (1/4"" Jack), Output (1/4"" Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 50 mA; powered by a 9 V DC Power Supply (not included); suitable optional Power Supply: Item no. #409939; Dimensions (W x D x H): 69 x 124 x 69 mm (2,7"" x 4,88"" x 2,7""); Handmade in USA; Note: Battery operation is not supported