Introducing Rail, our new flagship family of earbuds with Skull-iQ Smart Feature Technology (R). We created Rail with a simple set of design requirements - it had to be the best sounding, best looking, most comfortable, most intelligent family of earbuds ever made, and it had to get better with time. Welcome to the future of future-proof audio. Skullcandy Rail True Wireless Earbuds | Black | Christy Sports