Xotic RC Booster Guitar Pedal Active Treble, Bass ,Gain and Volume controls allow for limitless tone shaping Offers a super transparent 20db+ clean boost and a +/-15db 2 band active EQ without ever compromising the integrity of the original tone Provides a solution to sound degradation, caused by long instrument cables and/or long effect chains between guitar and amp, by strengthening the original signal True bypass for eliminating any signal interference when switched off Can be used with AC adaptor (optional)