● This is an effects pedal that incorporates a distortion boost toggle switch, based on the circuit of the "Ugly Face" variant of the Fuzz Face. ● This effects pedal produces a variety of oscillations, from boomy to piercing, and "kyuwan kyuwan" sounds, by adjusting each knob and the guitar's volume. The frequency knob, which changes the pitch the most, is a large knob so it can be adjusted during performance. ● The cases have different textures in the 1st/2nd and 3rd/4th photos, but you cannot choose which one you will receive. Please be aware of this. ● EBK is a name used only for auctions. In the main business, we adjust, create, and repair equipment such as amplifiers and effects pedals specializing in blues-related gear, as well as guitar adjustments. The number of units produced has exceeded 800 (as of September 28, 2013), and many professional musicians use our products. ● Six-month warranty: We manage customer records, so if a failure occurs under normal use, we will compare it with the shipping records and repair it free of charge within six months. (However, you will be responsible for the shipping costs.) Please note that repairs for actions such as stomping on the pedal and breaking it due to excitement during a live performance will be charged. ● Hand-wired on a universal circuit board. ● 9V battery use is OK. ● Please prepare a 9V center-negative adapter for power. ● True bypass. ● The LED light is a 5mm high-brightness blue. ● The aluminum case size is 119 x 92 x 34 (height) mm. ● Price includes shipping. ※ Returns are not accepted except for initial operational defects. We also have vacuum tube amplifiers and effects pedals for sale, so please take a look. ● Please note that we do not offer discounts. ● Shipping will be arranged the next day or the day after, depending on work circumstances.