Features:

• Open-air headphones clip into the ear via a vertical design
• Non-slip design is perfect for active pursuits like exercising and dancing
• 13.5 mm diameter driver used for small size and delivery of deep bass
• Neodymium magnets provide maximum energy with minimal size
• Tangle-free cord (3.5 feet) is adjustable and stores away in backpack or purse

Editor Reviews:

Product Description:
SONY introduces the exciting new h.ear Headphone line with the eye-catching MDR-J10 Orange model. These chic Headphones are the ultimate in comfort, with a headband-free clip design that follows the contour of the ears, and vertical in-the-air Driver placement.

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 adjustable, making for easy storage in a backpack, briefcase or purse. The headphones come with a 3.5-foot cord, and their L-shaped plug is tailor-made for active use and won't bend and break like an upright plug might.

Rating : - Ok as backup
This headset is ok, but as a backup pair only: the earpieces don't go very deep in the ear so the bass is very weak.
There is also no clip to tie the dangling cord to clothing with, so it flaps around during exercise.
Finally, the orange color is really closer to pink.