Keeley Halo Andy Timmons Dual Echo Effect PedalAndy Timmons fans rejoice! The legendary guitarist's swift work with a delay pedal is no secret and finally, his same quick, delay swapping magic can be yours as well. Functioning as two independently adjustable and engageable delay pedals, the Keeley Halo opens up a wide frontier of delay tones and playing styles. Dial in a colorful canvas of delay tones on each side of the pedal and swap between them smoothly with a click of the A or B footswitch.