How to adjust the bell size of Apple 1 1?

1. Click the Open Settings icon on the iPhone desktop of Apple. ?

2. On the Apple phone settings page that opens, click "Turn on sound". ?

3. Enter the sound setting page of Apple's mobile phone, and click the slider indicated by the arrow to adjust the volume. ?

4, the slider to the left, the volume decreases, the slider to the right, the volume increases, make appropriate adjustments according to your own needs. ?

5. In addition to adjusting the volume on the settings page, you can also adjust it by pressing the up and down volume keys of iPhone.