About this item [Adjustable Headband]: The headphones feature a 40mm driver, an adjustable headband, and a compact earcup design. The adjustable headband allows for a perfect fit for your head shape. With soft cushion protein earmuffs, they rest comfortably on your ears. Enjoy strong bass and comfortable on-ear headphones with a great seal to minimize outside noise, so you can hear the beats clearly. [Lightweight and Tangle-Free Design]: These headphones are lightweight yet sturdy and comfortable on the ears. They stay in place and effectively block outside noise. The cord is made from premium nylon braided material, measuring 1.3m in length, ensuring durability and tangle-free use, making them suitable for kids and children. [In-line Microphone]: The in-line microphone allows for convenient call management, including making and ending calls, playing/pausing, and skipping tracks forward and back. These on-ear headphones support a wide range of devices, including cell phones, computers,