Pp assistant imports SMS ringtones.

2. Right click-Show Introduction-Options-Set the start and end time, which takes 40 seconds.

3. Right-click to create AAC version;

4. Display in windows Explorer, find the file, rename it, and change the extension from m4a to m4r. ;

5. Return to itunes, double-click the ringtone (if there is no ringtone, you need to select personal preference and ringtone in the edit menu), add the file whose name has just been changed to the ringtone database, and then synchronize the ringtone to the mobile phone;

6. Set the ringtone in the mobile phone and select the synchronization song.