Sealed ..The Sephia SP3060 Wired Headphones feature HD bass-driven audio for a high-quality listening experience. Made of lightweight aluminum, these headphones are designed for comfort and convenience. The sleek black color adds a stylish touch to the overall design, while the compact package dimensions of 6.5x3.82x0.94 inches make them easy to carry around. With a 3.5mm connection, these headphones are compatible with a variety of devices for on-the-go use.