2016 年秋天，苹果拿掉 iPhone 7 的 3.5mm 接口，随之而来的，是 AirPods 的横空出世。苹果通过无线连接、入耳检测、空间音频等技术，对听觉体验进行了一波大升级，虽然 EarPods 没有被立刻抛弃，还能正常使用，但实际上，你需要购买 AirPods，才能获得升级后的体验。
The two most important metrics for email marketing are open rate and click-through rate. If your emails aren't opened, subscribers will never see your full marketing message, and if they open them but don't click through to your site, your emails won't convert.
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Employs a data-driven, goal-based strategy,
Deborah Alsina, chief executive of Arthritis UK, said: "This is a crushing blow for those individuals who have finally made it to the front of the orthopaedic surgery queue after a long time waiting.