How to set a custom SMS ringtone for iphone with itunes?

● Interception of ringtones: download cool dog music to the desktop with a computer, and intercept ringtones with a "cool dog ringtone production expert".

● Apple phones set ringtones:

1, Apple's mobile phone can only set the ringtone with the computer.

2. Import ringtones into Apple phones:

Open the mobile phone iTools application-Connect the data cable-Select Trust in the prompt box that pops up in the mobile phone iTools application interface-Open the computer iTools software-Press the music at the top-Press the system ringtone on the left-Press Import or drag the ringtone file directly to the window.