Flexible design fits comfortably and stays put for all levels of exercise Rugged sweat-proof design with P2i coating On-ear controls for calls and music Included neoprene armband secures your smartphone and reverses to store headphones Powerful speakers deliver the heart-pumping bass and crisp highs of your music Up to 8 hours of listening time, 6 hours of talk time, 14 days of standby time DeepSleep mode puts earbuds into hibernation when away from phone to extend battery life