Created by athletes, the Focus 500 Sport Headphones by JBL add great sound performance to your active lifestyle, helping you staying focused while working out. Whether you're running cross-country or competing in CrossFit, you will enjoy the secure TwistLock technology with ergonomic ear tips that are guaranteed never to hurt or fall out. Designed to motivate, up to 8 hours of JBL Signature Sound will keep you going longer and harder. What's more, there's a detachable cable clip for a more secure experience and sweatproof quality for endurance through rain, water, and sweat. These sport headphones provide a premium audio experience and perfect fit, with the convenience of Bluetooth wireless.