The MDR-EX310SL Premium In-Ear Stereo Headphones from Sony provide high-quality audio in a lightweight and compact design. The headphones have a unique vertical in-ear style with a newly-developed fitting mechanism for a secure and comfortable fit. The 13.5mm dynamic drivers have neodymium magnets to deliver crisp， realistic audio with a wide， accurate frequency response.

The headphones come with 3 sizes of noise isolation eartips， plus 4 sizes of hybrid eartips， allowing you to find the best fit for comfort and noise isolation. The OFC cable has a neckchain style design complete with an adjuster to provide the proper tension. The gold-plated 3.5mm plug is angled for strain relief and offers compatibility with a variety of MP3 players， CD players， laptops， and more. A carrying case is included for convenient storage.

The lightweight and compact housings have a unique vertical in-ear style with a newly-developed fitting mechanism for a secure and comfortable fit
The 13.5mm dynamic drivers have neodymium magnets to deliver crisp， realistic audio with a wide， accurate frequency response
The headphones come with 3 sizes of noise isolation eartips， plus 4 sizes of hybrid eartips， allowing you to find the best fit for comfort and noise isolation
The OFC cable has a neckchain style design complete with an adjuster to provide the proper tension
The gold-plated 3.5mm plug is angled for strain relief and offers compatibility with a variety of MP3 players， CD players， laptops， and more
A nylon carrying case with a slide-out tray is included for convenient storage