The Archer Ikon is sort of a 2 in one guitar pedal. It can be used as just a clean boost by turning the gain all the way down. As you introduce gain it will attenuate the clean signal but there is a magical blend in between that you will find. Dimensions: 4.00 inch x 2.30 nich. 9 volt Negative tip adaptor and a 5.5mm x 2.1mm jack.9 volt Battery. Buffered Switching.