Pioneer se ch5bl balanced earphones with 25mm jack push mobile hi res audio to the limit introducing the new se ch5bl earphones from pioneer featuring a 25mm balanced headphone jack and delivering immersive hi res audio in comfort original drivers have been developed in house for hi res audio reproducing frequencies between 8hz 45khz allowing for an truly immersive audio experience and offering a sense of spaciousness to your music original dynamic driver hi res audio captures a wider fr