In this episode, Thomas Domville shows us how to turn on the Mac-like startup and shutdown chimes that are available on all iPhone 14 and newer models. To do this, go to Settings > Accessibility > Audio & Visual, and double-tap the "Power on and off sounds" toggle.

Note that as this option is facilitated by the iPhone's boot rom, the read-only code responsible for starting the iPhone and initializing iOS, it is limited to the iPhone 14 and newer devices. See this article for more information: How to enable the iPhone 14 boot chime