The JBL Endurance Zone open-ear sports headphones are designed for durability, a secure and lightweight fit, and comfortable wear, making them ideal for all types of workouts. JBL OpenSound technology energizes your workout and provides clear, energizing sound without blocking your ears, allowing you to still hear your surroundings while exercising. They feature an IP68 water and dust resistance rating, offer up to 8 hours of playtime on a single charge, and a maximum of 32 hours with the charging case. A quick 10-minute charge provides up to 3 hours of playtime.