According to Pacific Technology's inquiry, the method for setting ringtones on smart music players is as follows:

1. First open "Settings" on the mobile phone desktop.

2. After entering the settings page, find and click "Sound and Vibration".

3. In the jumped page, find and click "Incoming Call Ringtone".

4. In the pop-up page, scroll down and click "Select Video Ringtones".

5. In the jumped page, after selecting your favorite music, click "Done" in the upper right corner to successfully set the ringtone.