Sony Zx Series Wired On-Ear Headphones With Mic, Black Mdr-Zx110Ap Form meets function with smartphone control for life on the go. More than your basic pair of over-the-head headphones, the Sony MDR-ZX110AP headset delivers rock-solid audio performance, integrated microphone for hands-free calling and media playback controls for convenient operation. Impedance (Ohm) : 24 ohm (1KHz). Lightweight 1.38 in neodymium dynamic drivers deliver a punchy, rhythmic response to even the most demanding tracks The swiveling earcup design allows easy storage when you?re not using them, and enhances portability when you?re traveling With an inline remote and built-in microphone on the headphone cord, take hands-free calls from selected smartphones while listening to music Cushioned earpads for total comfort and enfolding closed-back design seals in sound The wide frequency range?spanning 12 Hz to 22 kHz?delivers deep bass, rich midrange, and soaring highs Plug: L-shaped stereo mini plug 3.5mm