● This is an effects pedal based on the Q-ZONE circuit, which reproduces a semi-wah sound like Michael Schenker's TAK. Highly recommended for MSG fans, as well as those looking for a semi-wah sound like FIXED WAH Tak Matsumoto. ● The PEAK knob can be fine-tuned with an internal trimmer. ● Another unit I have listed has a layout that allows you to use the PEAK knob with your foot like a wah pedal, so please take a look at that one as well. ● Hand-wired on a universal circuit board. ● 9V battery operation is OK. ● A 9V center-negative adapter can be used for power. ● Uses a φ5mm high-brightness blue LED. ● True bypass. ● The aluminum case size is 60 x 112 x 31 (height) mm. ● EBK is a name used only for auctions. In the main business, we specialize in blues-related amplifiers, effects pedals, and other equipment, providing adjustments, production, and guitar adjustments. We have produced over 4000 units (as of August 6, 2024), 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.) ● Price includes shipping. ※ Please refrain from returns except for initial operational defects. ※ This is a product made for reference only, so we do not use the exact same parts. Therefore, if you want to get the exact same sound, we recommend purchasing the actual unit.