The EVH 5150 Chorus is based on a legendary chorus unit that Eddie used to add texture and dimension to some of his most classic recordings from the early 1980s. It has a simple three-knob setup ”Volume, Tone, and Intensity ”with Input and Output Level pad switches, mono and stereo outputs, and an internal True/Buffered Bypass switch for modern rig flexibility. Combine this pedal with the 5150 Overdrive for a huge sound that s thick and chewy. Captures Eddie Van Halen's early 80s chorus sound Legendary chorus circuit suped up for modern rig flexibility Input and Output Level switches to optimize signal-to-noise performance and achieve unity throughput gain Volume, Tone, & Intensity controls Internal True/Buffered Bypass switch Mono and Stereo outputs Power: Dunlop ECB004 18 volt AC Adapter or Two 9 volt batteries (not included) Get your MXR EVH 5150 Chorus Guitar Effect Pedal from Sam Ash Direct today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.