The Bose QuietComfort 35 QC35 Wireless Headphones II are designed for an immersive listening experience with only the left side functioning. These over-the-ear headphones feature Bluetooth wireless technology, adjustable headband, noise cancellation, and extra bass for a premium audio quality. With a sleek black design and foldable feature, they are perfect for on-the-go use and offer a comfortable fit for long listening sessions. Built in the United States, these headphones combine style and functionality for a versatile audio accessory.