Amazon.com Product Description
Lightweight and secure enough for vigorous active use, the MDRJ10 headphones--part of Sony's h.ear line--feature a comfortable, vertical, in-ear form, a clip-on fit that follows the contour of your ears, and a stable, non-slip design built to withstand exercising, skating, dancing, or other sports. The MDRJ10 earcups use an open-air design that lets you hear ambient sound.
The MDRJ10's clip-on design is hair-friendly and keeps the size of the headphones small. Their tangle-free storage cord is adjustabl