True Wireless Flash offers a truly cord-free experience to push yourself further. The UA waterproof technology and Sport Flex Fit ear tips were crafted specifically for all condition training while the JBL Charged Sound was boldly optimized and tuned for motivation. Hear your surroundings with Bionic Hearing featuring TalkThru Technology to quickly interact with your workout partner, and AmbientAware Technology to hear your surroundings for increased safety. With a total of 25 hours battery life and a durable aluminum charging case, these headphones truly break the limits.