The LEF-3807 has a straightforward interface which makes it easy to the relevant settings required for your desired sound output. It features a Dry and a Wet set option: Dry controls the volume of the signal sound, whereby Wet controls the volume of the wet signal. The Harmonizer also features a 13 set dial, and each of these offer a unique shift in pitch, as as the choice to go up or by not just one, but two octaves. have also included a three-way toggle switch to go Up, Detune or . The combination of these controls along with the individual dials give you a wealth of various tones with a range of polyphonic pitches to experiment with. have fitted a true bypass footswitch to the LEF-3807 Pitch Shifter pedal which is constructed using advanced capacitor technology. This not only engages the pedal, but once switched on if you press once this allows you to switch between the sound and the effect; press twice and this switches between the fixed mode. If you're creating some cool sound layers then you can store the parameters simply by holding on the footswitch. Another great of this pedal! The Pitch Shifter has a handy LED status light indicators: The green light signifies the normal mode, whereas the red light denotes a fixed mode. Colour: blue Material: aluminum alloy Size: 9x3.5x3.5cm Package Contents: 1 * Effect Pedal Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.