MXR Eddie Van Halen Phase 90 Pedal Guitar Pedal featuring Wide Range of Sounds with AC Power adapter and cables! Updated through collaboration between Eddie Van Halen and Dunlop. Simple, single knob operation.Wide range of sounds Works well with guitar, bass, keyboards, and vocals.Knob varies speed from subtle to fast, watery warble The EVH 90 will give you the same great spacey swirls and hypnotic warbles that made the Phase 90 famous. Powered by one 9-volt battery or Dunlop ECB-003 AC Adapter.guitar pedal , guitar pedals , guitar pedalboard , pedal guitar , mxr pedals guitar , ac power adapter , guitar pedalboard patch cables , instrument cables , asin B00065VQN4 and upc 710137025554 is for mxr pedals guitar