hand-built effect ,High quality capacitors, resistors, IC Obsessive Compulsive Drive Pedal ,The Pedal delivers the sounds of a great tube amp, as sell as the same sensitivity and response to your playing style.Along with standard Volume, Drive, and Tone controls, the OCD's HP/LP (High Peak/Low Peak) switch takes the pedal from a clean boost to manic, sustain-laden distortion. True bypass switching.