The charging chime is the built-in sound iPhones play when power is connected, a small part of Apple's familiar interface that millions of users hear every day. Because it is so widely recognised, creators began lifting it from phones and screen recordings for short videos, reaction clips, and phone-related jokes, where a single ding instantly tells viewers what is happening without explanation. Its popularity has lasted because it is short, neutral, and easy to place, working just as well in a tutorial as in a comedy sketch about low battery anxiety.