SPECIFICATION : Secure custom fit: Enjoy custom-fitting workout earbuds thanks to the 3 sizes of Ear Gels and foam tips included to give you the right fit that boosts music and call quality. Plus, 3 sizes of Earwigs further enhance comfort and heart rate sensor. All-day power: Now with a battery that delivers 4.5 hours of play time coupled with a portable charging case, these Jabra wireless in-ear headphones give you 13.5 hours of power to keep you going. Sports earbuds: The in-ear precision heart rate monitor works with our integrated Jabra Sport Life app to track and analyze your fitness. Monitor absolute fitness level, have reps counted automatically, predict race pace and more. For all experience levels. Waterproof design: Jabra Elite Sport are waterproof earbuds that offer guaranteed durability. They have an IP67-rated waterproof design with a 3-year warranty against sweat damage. الحالة جديد نوع الغرض سماعات أذن و بلوتوث