Stylish Stereo HeaThe Panasonic RP HSX400 is an on-ear headphone that delivers a loud, clear sound. This range of Panasonic headphones is designed for those looking for a headphone with a striking look. With swiveling earcups, these headphones come with a single-sided flat cable that is tangle-free. It has a fantastic design and comes in a variety of colours.dphone with Compact Folding Mechanism 40mm Driver units Single Sided Tangle Free flat cable Available in six Colors Portable Swivel Mechanism