The acclaimed Koss KPH30i on-ear headphones provide lightweight, adjustable portability with incredibly spacious sound for on the go use. Featuring an open-air design with smooth bass, clean treble and an all-new patented suspension; the KPH30i creates the absolute perfect fit for hours of comfortable listening enjoyment. Plug in the KPH30i using the all-new, rugged cable system with spring reinforced strain relief that is built to last.