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It sounds like you're asking about the shift from the traditional headphone jack (3.5mm) to USB-C on Apple devices. Apple made the move to remove the headphone jack starting with the iPhone 7 back in 2016. Since then, they've been pushing for wireless audio (AirPods, for example), but USB-C is increasingly becoming the standard for wired connections across various devices, including newer Apple products like the iPad Pro and MacBook.