Place it as the last sound in an edit, after the reaction and the punchline have already landed. Pair it with a sigh or a door closing just before it, then let the video end there without adding another joke or a second farewell.
關於此聲音
This is a brief Russian voice clip saying “nu davai, do skorogo,” roughly “alright then, see you soon,” in a flat, everyday tone lasting just over two seconds. It feels dry, casual and a little awkward, like the last words before someone hangs up and walks away, giving a joke or conversation a blunt, understated ending.