Sony's MDREX15AP In-Ear Headphones deliver powerful, balanced sound with 9mm neodymium drivers and a frequency range of 8Hz-22kHz. Designed for both comfort and convenience, they feature hybrid silicone earbuds in three sizes (S, M, L) for a secure and comfortable fit. An integrated in-line microphone and multi-function control button allow for easy hands-free calling and music playback control directly from your smartphone. The Y-type cord includes a slider to prevent tangling, making these lightweight headphones ideal for music mobility.