Analog boost. Adjustable signal boost of zero to +20db. FET input stage for tube-like distortion if input is overdriven (with more than 2V P-P). Tone control circuit allows bass to be boosted without losing all the treble or the treble boosted without losing all of the bass. Scooped midrange response at the center of the tone control. On/Off Tone toggle for clean boost or activated tone control effect. Tone Control/Tone Toggle/Gain Control. Excellent dynamic response. Simple, easy to use design. 100% Analog design with True Bypass circuitry. "Effects on" indicator light. Original XVIVE tone. Micro pedal package. Durable all-metal housing