The MXR 10 Band Graphic Equalizer is the perfect addition to your guitar gear. This pedal offers an impressive range of tonal possibilities, allowing you to customize your sound to your exact liking. It is designed for use with acoustic electric guitars, bass guitars, and electric guitars.. Additionally, it is an analog pedal, providing a warm and natural sound that will enhance your playing experience. All frequency slider lights light up except the volume and gain sliders. This does not affect the sound of the EQ. A Dunlop 18VDC adapter is included.