Why though? Audio jack delivers pretty much all you need functionality for headphones and plenty of existing hardware. iPod Shuffle 3d gen was tiny, had only 3.

Why though? Audio jack delivers pretty much all you need functionality for headphones and plenty of existing hardware. iPod Shuffle 3d gen was tiny, had only 3.5mm for data transfer and charging. They remove headphone jack in iPhone 7 and added USB-C in iPhone 15. So for almost a decade the only option was proprietary lighting or bluetooth, probably resulted in a significant amount of e-waste.