How does Apple's mobile phone turn off the notification sound?

In this case, the operation steps are as follows:

1, open the settings and find "sound touch".

2. Click the switch below the ringtone and reminder and turn on the button to adjust, so that the sound of the notification message can be adjusted through the volume button.

3. Return to the settings page and click the "Notification" option. Locate the application that you want to turn off message notification, and then click Enter.

4. In the pop-up interface, find "Sound" and close it.