Notification sounds became a standard editing shortcut as smartphones made short alert pings part of everyday life, and creators began recreating those moments in videos. Notification 2 follows that familiar pattern with a single clean tone rather than a branded chime, so it can stand in for a message, reminder or app alert on any device. It spread through soundboards and short form edits where a visual pop up needs instant audio context, and it remains popular because viewers understand the cue immediately without needing dialogue, captions or explanation to follow the scene.