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What social software whistles at the mention of information?

What kind of social software is like whistling to send messages? This is just a ringtone. Many call reminders have this. Reminder ringtone.

The whistle-like ringtone you mentioned is the ringtone that comes with WeChat. If you want to find it, you can open the WeChat message reminder and set it to find this ringtone. There should be this bell in other places. You can find it directly, but it should be the message reminder that comes with WeChat in the Yuan Dynasty. If news comes, it will remind you, just like whistling. Think about it.