1. When the computer accesses Wo Music website, click "Login" in the upper right corner of the page, enter the mobile phone number (e-mail address, other user names), password and verification code, and click the account at the portrait in the upper right corner of the page after successful login to enter the interface of "User Center > Business Management";

2. Select the ringtone single to be set in the "ringtone library" or "ringtone box", click "Set as default ringtone", and set the playing order of ringtone songs according to the page prompts. Ringtone is a personalized ringtone service launched by China Unicom, which is customized by the called party and provides a pleasant piece of music or a greeting for the calling party to replace ordinary ringtones.