From the Jaybird X4 press release:
The buds provide improved comfort and ergonomics, with new silicon fins and ultra-soft silicon tips in several different sizes to fit almost everyone. They also come with the new exclusive-to-Jaybird Comply Ultra™ foam tips, featuring unique thermo-reactive foam that conforms to your ear canals for a comfortable and secure fit. The new Speed Cinch cord management system allows users to adjust the length of the cable to allow for the perfect under- or over-ear fit for them.
“From trail runs and mountain bike rides to summit scrambles and deep powder days, our passion for the outdoors drives our innovation,” said Jamie Parker, CEO of Jaybird. “The new Jaybird X4 embodies that spirit of versatility – it’s comfortable, rugged and fully waterproof to tackle any run, ride or trail in any condition.”
The wireless headphones will be available in three colors combinations:
Black Metallic/Flash, Alpha Metallic/Jade. The third color, Storm Metallic/Glacier can be found exclusively at Best Buy and jaybirdsport.com. The Jaybird app is free and available through the iOS® and Android™ app stores.