The THUG Distortion is a versatile high-gain distortion pedal with the characteristics and touch sensitivity of a high quality 100 watt tube amplifier. The pedal transform a amp into an authoritative rock tone that inspires all of your favorite riffs. VOICING SWITCH(Three model) UP: 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. Install a 9V battery in the unit (see below) or plug in a suitable 9Vdc, center negative power supply. Plug your guitar into the input jack and connect your amp to the output jack. Input Impedance:1 M ohm Output Impedance:6 00 ohm Power Connector:9 , center negative, 2.1mm x 5.5mm Dimensions:1 1.5 x 6.5 x 5.5CM Weight:0 .28KG Color: As Shown Material: Metal Package Contents: 1 * Distortion Guitar Effect Pedal Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.