This charging cue comes from Samsung’s TouchWiz software interface, which appeared on many Galaxy smartphones and tablets running Android. The sound became familiar through repeated everyday use whenever supported devices were connected to power. As TouchWiz was replaced by newer Samsung interfaces, its notification tones gained nostalgic value among longtime Galaxy users. The charging chime continues to appear in phone demonstrations, retro technology compilations, interface comparisons, and short comedy edits because it communicates a successful power connection almost instantly.