The chime comes from Siri, Apple's voice assistant built into iPhones, iPads and other Apple devices, where it signals that the assistant is ready to hear a request. As Siri became a daily tool for setting reminders, sending messages and answering questions, its activation sound became instantly recognisable even without seeing a screen. Online, creators reuse it as shorthand for talking to a phone, and it is often grouped with a simple ding sound effect in edits about notifications, smart assistants and everyday technology.