How to turn off the message prompt tone of Android phone

How to turn off the message prompt tone of Android phone, the operation steps are as follows:

Open settings > sound.

Click the default notification ringtone.

Click the button to set the ringtone to none.

Click the check mark to save the settings.

Extension: You can also drop down the notification bar and set the phone mode to silent mode by turning off the phone prompt tone.

Press and hold the volume down, the volume bar will pop up, and the volume of the bell can be reduced to a minimum, and the prompt tone will be turned off.