1. First, search for the songs you want to make CRBT in the "search bar" of the cool dog player.

2. Click Download and drag it to the desktop.

3. First open the cool dog, click "Tools" on the left side of the search bar, and open "Ringtone Making".

4. Select the song you just downloaded from the desktop in "Add Song".

5. After adding, you can set the starting point and ending point of the song according to your own needs on the tool page for making CRBT.

6. After setting the song time you want, set the fade-in and fade-out of the song to let the song go in and out naturally.

7.CRBT has been built, and the next step is to save it. You can also save it in your mobile phone.

8. Before saving, you need to pay attention to another problem, that is, your final CRBT cannot exceed 2.0M

9. Finally, find the CRBT you edited in the path you saved.