Fully immerse yourself in your favorite music with the Bowers & Wilkins in-ear earbuds. The PI 7S2 and the PI5 S2 are earbuds with Hi-Res audio. With this technology, you can enjoy a detailed sound reproduction because it supports larger audio files. That way, you can hear more details in a bass line or drum solo. The Bowers & Wilkins earbuds are also water-resistant, so you can use them when it rains or during a workout without problems.