Tuned with Sound by Bose Experience high quality, balanced sound with deep bass, clear mids, and crisp highs for clarity thats unparalleled. Dynamic EQ Sound adjusts automatically to keep audio balanced and detailed at any volume level. Segment-leading Adaptive ANC Advanced Active Noise Cancellation blocks unwanted disturbance across frequencies for uninterrupted listening anywhere. Designed for all-day comfort Soft vegan leather cushions and a memory foam headband provide a lightweight, comfortable fit for long wear. Smart, long-lasting performance Up to 60 hours of playtime and smart wear detection that pauses audio when you take the headphones off.