Apple introduced AirTag in 2021 as a small coin-shaped tracker that pairs with the Find My network on iPhone, using a built-in speaker to play a sound when its owner asks to locate it. Because the tone is distinctive but rarely heard outside that moment, clips of it began circulating online as people searched for what an AirTag actually sounds like and creators reused it to illustrate tracking, lost-and-found moments, and everyday tech. It remains useful because the chirp is instantly recognisable to Apple users without needing any explanation.