The Xotic Effects RC Booster gives you more control over your tone than most  boost pedals. It's Treble, Bass, Gain and Volume controls allow you a wide  variety of tonal options. As Xotic Effects says, "The best characteristic of  this booster is to have no character at all." We'd have to agree with that  assessment.

Features     *  It's active Treble, Bass ,Gain and Volume controls allow for limitless tone shaping . * The RC Booster offers a super transparent 20db+ clean boost and a +- 15db 2 band active EQ without ever compromising the integrity of the original TONE. * It 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) or 9V Battery.

Specs * Dimensions (W/D/H): 4.39" x 2.38" x 1.98" (112mm X 60mm X 50mm) * Weight: 0.6 lbs. (280g) * True Bypass Switching * Power Consumption: 9VDC/6mABattery Type: 9VDC (006P) x 1 * AC Adapter (Optional): 9VDC, Negative Tips (Regulated recommended) * Input Impedance: 500k ohm (min) * Output Impedance: 10k ohm