• Equipped with renowned noise-cancelling technology: Combining advanced computation and physical sound insulation to achieve silent wireless headphones in a quiet environment, detached from surrounding noise With noise-canceling technology, it creates moments where you can enjoy music with your whole body • Premium Fit: Soft ear cushions that gently fit your ears, perfect for long listening sessions Part of the headband is made of steel for a secure fit and comfortable to wear, optimizing strength and feel The bottom of the band features soft protein leather-treated foam for a comfortable fit. Enjoy wireless and stylish headphones with a pleasant wearing experience • Two listening modes: This wireless Bluetooth headphone features Quiet Mode and Aware Mode, allowing you to easily switch between complete noise cancellation and a level that also recognizes ambient sounds • High Fidelity Audio + Adjustable Equalizer: This wireless headphone offers high fidelity (Hi-Fi) audio and an adjustable equalizer, allowing you to emphasize bass, fine-tune treble, and balance mids for the sound you desire • All-day battery life: The Bose QuietComfort wireless headphones offer up to 24 hours of continuous playback on a single charge Plus, a 15-minute quick charge provides up to 2.5 hours of playback