OPPO mobile phone notification ringtone, how to customize it

Usually set colorful ringtones according to your own preferences. In fact, the notification ringtone can also be set by yourself. 1. Set any ringtone when entering the ringtone. 2. Then a lot of ringtones will be displayed in the phone settings-sound-other notification system ringtones interface, and then you can customize the notification ringtones here. 3. If you don't want some ringtones to be displayed in the settings-sound system ringtone interface, you can move or delete ringtone files by going to File Management-Storage-Mobile Phone Storage-Jishou Tudor-Ringtones-Cache.