Passive noise isolation, active noise cancelation, and Pure ANC work in different ways to block ambient noise.

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    Passive noise isolation

    Noise isolating earphones and headphones inherently block out ambient noise without batteries. Adjustable-fit eartips on earphones and extra earcup padding on headphones act as physical barriers to keep unwanted noise from reaching your ears. These barriers also help prevent people around you from hearing your music.

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    Active noise cancelation

    For additional noise cancelation beyond passive noise isolation, internal and external microphones in the headphone measure unwanted ambient noises, then circuitry in the headphones generate sound at a frequency that cancels out those noises. Active noise cancelation works whenever headphones with this feature are turned on.

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    Pure ANC (Pure Adaptive Noise Cancelation)

    Pure ANC is a form of noise cancelation that uses advanced algorithms to monitor the sounds around you and adjust the level of noise cancelation to best match your environment. Pure ANC also evaluates fit and adjusts for leakage caused by hair, glasses, the shape of your ear, and movement of your head as you go about the day. Additionally, Pure ANC simultaneously checks what you’re hearing while noise canceling is applied against the original music content to adjust and ensure optimal audio fidelity.

    You can turn Pure ANC off if you want to use your headphones in low-power mode without sacrificing audio quality.

Noise Canceling Vs. Noise Isolating

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