With their adjustable hush active noise cancellation feature, the Know Calm Headphones keep you focused on what you want. Made with a thoughtful, comfortable design, these headphones make listening for hours enjoyable. In fact, these noise-canceling headphones offer 24 hours of playtime on one charge, so you don’t have to turn them off to save battery. With ambient transparency mode, they let you hear outside noise when necessary, and they offer intuitive touch controls to change the settings. Coming with a travel case, the Know Calm Headphones are available in three colors: black, pink, and green. Furthermore, they work with Android and Apple devices. And they come with a 3.5 mm aux cable if you want to use a wired connection. Boasting crystal-clear sound, these wireless charging headphones use MindShine technology for great audio.