Created by athletes, the Focus 500 Sport Headphones by JBL add great sound efficiency to your active way of life, helping you remaining focused while exercising. Whether you're running cross-country or competing in CrossFit, you will enjoy the protected TwistLock technology with ergonomic ear tips that are guaranteed never to harm or fall out. Designed to inspire, as much as 8 hours of JBL Signature Noise will keep you going longer and harder. What's more, there's a removable cable clip for a more protected experience and sweatproof quality for endurance through rain, water, and sweat. These sport headphones provide a premium audio experience and perfect fit, with the benefit of Bluetooth wireless.