The MDR-E9LP Stereo Earbuds (Red) from Sony provide quality audio in an ultra lightweight and compact design. The earbuds have 13.5mm neodymium drivers and an open-air design to provide crisp, realistic audio with deep bass. The angled 3.5mm plug provides strain relief and is compatible with a variety of MP3 players, CD players, laptops, and more. Ultra lightweight and compact design, ideal for life on-the-go Open-air design and 13.5mm neodymium drivers provide clear, natural audio with deep bass The angled 3.5mm plug provides strain relief and is compatible with a variety of media devices