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Tải MP3 
Place it as the closing beat of a chat-screen edit, after the final on-screen reply, and put WhatsApp Message Sound Button just before it so the incoming alert sets up the exit, then let the goodbye close the scene.
Về âm thanh này
This is a brief spoken goodbye, lasting about one second, delivered in a single casual voice. It feels light and friendly, like waving off a friend at the end of a chat rather than making a formal farewell. The short, direct delivery makes it easy to recognise instantly and use as a simple sign-off in a conversation.
