The 1MORE Z buds are intelligent earphones for everyday audio listening with superior external noise blocking capacity. They also come equipped with a range of natural sounds such as sea waves, waterfalls, forests, and fires to mimic pink noise, proven to help relieve pressure and sleep. The earphones only weigh 2.1 g and have a tiny profile. Z buds do not pressure the user's ears when they lie down sideways to listen to music or sleep.