Active Noise Cancellation is an active, electronic method of reducing unwanted ambient sound that adds processed sound to your audio to reduce the perception of ambient noise.
Your MW65 headphones feature two Active Noise Cancelling (ANC) modes for clear, expansive sound in any environment.
HIGH ANC is recommended for Airplanes, City Streets, and other noisy environments
LOW ANC is recommended for lower noise environments, such as walking outside on a windy day