Sennheiser PX 10 In-Ear HeadphonesWithout a doubt, the reason why we love portable music players so much is that they are so easy to carry around. Take it to school, the office or while traveling; listening to music has never been this convenient. So as not to undermine a music player’s portability, we also want a pair of headphones or earphones that are specifically designed to be portable as well. Of course, just as important is the quality of the sound those headphones produce. If these sound like your audio/musical concerns, then get a hold of the Sennheiser PX 10 In ear Headphones, where portability meets quality in a single lightweight device.