Dunlop MXR Eddie Van Halen Phase 90 Pedal: Will give you the same great spacey swirls and hypnotic warbles that made the Phase 90 so famous. EVH 90 also features the all-new Script Switch that lets in instantly toggle between a vintage phase tone & a more modern phaser. Power: ECB003 AC Adap. or Single 9 Volt battery EVH90-1