Meet the Major IV, the iconic headphones from Marshall featuring over 80 hours of wireless playtime, wireless charging, and a new, improved ergonomic design. With a battery life of more than three days, you no longer have to worry about your headphones giving out when you need them. Custom-tuned dynamic drivers deliver booming bass, smooth mids, and brilliant highs for a rich, unparalleled sound that you'll never want to turn off.