The sound is the familiar default ringtone associated with Apple's iPhone, a bright marimba-style tune that became widely recognised as the phone spread around the world. Because the melody was heard in pockets, offices, and public places for years, it turned into a shared audio cue that people instantly link to an incoming call. Online, creators began lifting it for prank videos, comedy sketches, and reaction clips, where a few seconds of ringing is enough to set up a joke without any explanation. Its continued use comes from that instant recognition, which still works even as newer ringtones appear.