Product Description:-Small and Lightly design brings you comfort during sport-Ergonomic: The special curved design of our earplugs fit your ears naturally and comfortably-Noise Isolation: Our ergonomic earplugs and the metal-shielded driver blocks out external noises-G-Bass Technology: Delivers rich sound with clear low notes (Bass) and few softened sharp notes-Compatible with all devices that has the standard 3.5mm headphone jack.-3.5mm Gold Connector: Works with all your iPods， iPhones， Zunes， PSPs， Nintendo DSs， and what not-Compact， portable & stylish design; easy to carry， and comfortable to wear.-Built-in microphone and Inline controls for phone calls， volume， and music playback.-Noise Isolating and G-bass Technology-Package Includes: 1 x headset