Neodymium dynamic drivers deliver precise soundLightweight 1.38 in neodymium dynamic drivers deliver a punchy, rhythmic response to even the most demanding tracks. Combined with a highly sensitive diaphragm, turn the volume up—without needing an amp—and still enjoy clear, precise audio across the spectrum.Swivel folding design makes travel easyTake these headphones anywhere you go. The swiveling earcup design allows easy storage when you’re not using them, and enhances portability when you’re traveling. The earcups swivel flat, so you can pack them into a suitcase or bag without worrying about taking up too much valuable space. Inline remote and mic for hands-free callsWith an inline remote and built-in microphone on the headphone cord, take hands-free calls from selected smartphones while listening to music. Switch easily between songs and calls with no need to remove your headphones.* *Only the MDR-ZX110AP modelCushioned earpads for total comfortListen in total comfort. These headphones have a self-adjusting headband and soft cushioned earcups that cover the whole ear. Enjoy the long-lasting comfort you need for listening to your favorite albums back-to-back.Wide frequency range for clear highs and lows The wide frequency range—spanning 12 Hz to 22 kHz—delivers deep bass, rich midrange, and soaring highs. Hear the detail in every track, and stay in tune with all your music. Enfolding closed-back design seals in soundThe closed-back, enfolding design wraps around the ear, sealing in music and keeping out distractions. Acoustics are reflected back toward your ears, so you hear even the subtlest sounds. You also feel every beat, as the closed-back design maximizes the bass signatures in your music.