Product Description ● This is an overdrive pedal that simulates Van Halen's brown sound, modified from the cmatmods Brownie. ● In addition to the standard DRIVE, TONE, and VOLUME controls, it features a CONTOUR knob to adjust the mid-range presence, and a knob to adjust the voltage applied to the internal transistors. This allows you to change the distortion texture from a fuzz-like coarse grain to a brown sound-like fine grain. ● Furthermore, a booster has been added in the later stage. ● It is handmade with hand wiring on a universal circuit board. ● 9V battery operation is OK. ● A 9V center-negative adapter can be used for power. ● A φ5mm high-brightness blue LED is used. ● True bypass. ● The aluminum case size is 92 x 119 x 34 (height) mm. ● EBK is a name used only for auctions. In the main business, we specialize in blues-related amplifiers, effectors, and other equipment adjustments, production, and guitar adjustments. The number of units produced has exceeded 4000 (as of August 6, 2024), and many professional musicians use our products. ● Six-month warranty: We manage customer records, so if a failure occurs during 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, and we do not use the exact same parts. Therefore, if you want to get the exact same sound, we recommend purchasing the actual unit.