Built-in background sounds on iPhone

I recently discovered that my iPhone has built-in background sounds like rain, ocean, or stream to mask unwanted noise. This feature came in handy on a recent flight while my phone was in airplane mode. You can also play ambient noise while you play other media like music or podcasts to further drown out environmental sounds. I found it under Settings > Accessibility > Audio Visual > Background Sounds. Thanks to Recomendo reader Pedro Nobre for the heads up on this. — CD