LINE is a messaging app widely used in Japan, Thailand, Taiwan and other parts of Asia, where its default alert became as familiar as any other phone sound. As short-form video editing grew, creators began lifting the chime from their phones to signal incoming messages without needing dialogue or captions. Like a Discord notification or a generic ding sound effect, it works because audiences already know what it means. Its short length and clean tone keep it useful for quick cuts, reaction videos and texting jokes.