After more than a year of trial and error, I finally (which for me) perfect Running headphone found. I run 2-3 times a week as 10-15 km, but sometimes longer. Important were good sound, but especially good fit / comfort / practicality. I started with NoName-InEars with back ear hooks, which, however, all is not sound convinced. Then the Philips SHS8105A / 00, which provided a beautiful sound came, unfortunately stopped (Curiously, only the rights, regardless of which article) it does not, to my ears running thus made no real fun. And now the Pioneer. Super sound (to me, I hear mostly metal, punk, a little electric). Sophisticated design: The movable suspension they sit at any time and with every move perfectly in the ear, the spiral cable buffers while any tensile loads. MM by chic design. A Dream ;-)