How long does a AAA battery last in the Bose noise cancelling headphone?

The battery life of Bose noise cancelling headphones that use AAA batteries can vary based on usage, but generally, a single AAA battery can last approximately 20 to 30 hours of continuous playback. Factors such as the level of noise cancellation used and the volume can influence this duration. It's advisable to use high-quality alkaline or lithium batteries for optimal performance.