This alert comes from Nokia's Symbian era S60 3rd Edition phones, the system warning played when the battery reached a critical or empty level and the device was about to shut down. Because those phones were widely used in the 2000s, the sound became instantly recognisable to a generation of users, and it later circulated on soundboards as a shorthand for a dying device. It remains popular in retro tech edits and comedy clips because the warning needs no explanation to land.