Under Armour True Wireless Flash X headphones offer a wireless experience to push athletes to perform their best. UA waterproof technology allows training in all conditions, and Sport Flex Fit ear tips provide a comfortable yet snug fit that provides Passive Noise Cancellation for superior focus. JBL Charged Sound was tuned to maximize motivation, and Bionic Hearing features TalkThru Technology to quickly interact with your workout partner, and Ambient Aware Technology to hear your surroundings for increased safety. With up to 50 hours of battery life and a durable aluminum charging case, these headphones help you break the limits.