The Shure SE846 Gen 2 Sound Isolating earphones introduce a new sound signature available through a 4th nozzle filter, as compared to the three offered by prior models. Called the "extended" filter, this frequency response is now the standard/integrated sound out of the box. Four custom-engineered drivers tailored to blend precisely with each other deliver extended high-end clarity, while the groundbreaking low-pass filter design gives you the performance of a true subwoofer—all without sacrificing any detail. A detachable cable enables the ability to convert to wireless or integrate other wired accessory options. A new extra-small sleeve (XS) has also been added for a personalized fit.