The ATH-COR150iS SonicSport® in-ear headphones give you great sounding audio with a travel-friendly design that includes in-line mic/control and snap-on ear hooks. The 8.5 mm drivers provide crystal clear sound reproduction with impressive bass response that brings out the depth in any type of music. The advanced-fit design features snap-on/snap-off ear hooks that enable the cord to be wrapped over each ear for additional stay-in-place comfort. Plus, with three sizes (S/M/L) of eartips to choose from, you'll enjoy a customized fit with outstanding sound isolation. The cord features an in-line mic and control that lets you answer calls and handle playback (play, pause, fast-forward, reverse, next/previous track) of music and video on smartphones and other portable devices, including iOS devices.