The JBL® Endurance Zone earbuds are engineered for high-performance workouts, combining open-ear design with powerful audio to support active lifestyles. JBL OpenSound technology delivers dynamic sound through precision drivers while maintaining awareness of your environment, making them ideal for outdoor training. A flexible silicone ear hook with a memory wire provides a stable, secure fit that remains comfortable throughout extended use. With an IP68 rating, they are resistant to water, dust, and sweat for reliable performance in demanding conditions. Four integrated microphones with noise reduction enhance call clarity, and long-lasting battery life and fast charging keep you powered through multiple workouts. Includes: earbuds and charging case. Dimensions: 3.94" W x 6.3" H x 1.38" L. Weight: 0.41 lbs.