SOLO is a versatile high-gain distortion pedal with the sonic characteristics and touch sensitivity of a high quality 100 watt tube amplifier. SOLO will transform a super clean amp into an authoritative rock tone that inspires all of your favorite riffs. CONTROLSDIST: Adjusts the amount of gain added to your tone, taking you from classic crunch to high-gain heaven.LEVEL: Adjusts the output of the pedal. Riot provides enough level to push the front end of any tube amp into natural overdrive.TONE: Shapes the overall tonal response of the pedal, from smooth and warm to cutting lead tones. VOICING SWITCHUP: Produces a natural, organic tone that responds dynamically to your guitars volume control. Middle: Puts you into high gain territory with a solid midrange, with a tight bottom end. DOWN: Produces a vintage high gain response, with excellent definition. LED: LED illuminates Red when effect is activated. 9Vdc, center negative power supply.Plug your guitar into the input jack and connect your amp to the output jack. Input Impedance:1M ohm Output Impedance:600 ohm Power Connector:9Vdc, center negative, 2.1mm x 5.5mm Dimensions:11.5*6.5*5.5CM Weight:0.28KG