Place it just before a text reveal in the edit, then follow the message with the Dramatic Dun Dun Dun for the reveal, or add the Vine Boom after it when the reply turns out to be a joke.
關於此聲音
This two-second clip is a Samsung-style phone alert, a short chime that cuts in like a new text arriving. It feels playful and slightly awkward, catching listeners off guard at the wrong moment, and it comes from the familiar notification sound used on Galaxy phones.