The sound comes from Mighty Morphin Power Rangers, the American series that premiered in 1993 and adapted action footage from Japan's Super Sentai franchise. The Rangers wore wrist communicators that chimed when Zordon or Alpha 5 contacted them, usually to summon the team into action. Clips of the beeps later circulated on soundboards and streaming alert packs, where the short cue worked perfectly for new followers. Its lasting popularity mixes practical clarity with strong nineties nostalgia for viewers who grew up watching the show after school.