On your iPhone, you can follow the steps below to turn on the narration sound for the next rotor, so that you can successfully turn on the narration sound for the next rotor on your iPhone.
1. Turn on your iPhone, find and click the "Settings" app on the home screen.
2. In the settings interface, scroll down and click to enter the "Accessibility" option.
3. After entering the accessibility page, continue to scroll down and find the "Narration" option, click to enter.
4. In the narration interface, select and click the "Audio" option.
5. After entering the audio options, find and click the "Narration Sound & Touch" option.
6. In the Narration Sound and Touch interface, find and click the "Next Rotor" option. From this page, you can turn on the Sound option to enable the narration sound for the next rotor.