The headline feature of the AirPods 4 may be active noise cancellation (ANC), but Apple has done well to improve the overall audio quality in addition to blocking environmental sounds. For the first time on the “regular” AirPods ANC is on the spec sheet, at least for one model, and there are a few key components that allow the earbuds to effectively cancel noise. And that’s despite the fact that your ears aren’t completely sealed off with a flexible tip. There are also specific changes to the AirPods 4 that improve overall sound
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