Your always-on mobile essential with lightweight earbuds that drape securely around your neck. Move effortlessly from immersive music to calls, with subtle alerts and one-touch controls. BackBeat 100 Series comfort-fit earbuds block out ambient noise. During phone calls, your voice comes through clearly and vividly, thanks to microphone and technology that reduce echoes and background sounds. Subtle vibrating alerts, voice notifications, and simple one-touch controls let you move effortlessly between music and calls. And, with up to eight hours of listening time on a single charge, BackBeat 100 Series can keep up with your always-on life.