When Issy Cairns was just four weeks old, her parents were told she was profoundly deaf.
Cricket legend Chris Cairns and his wife were devastated but determined to do what they could for their daughter.
This is a story of how cochlear implants have changed one little girl's life.
You see, if Issy lived in New Zealand like her grandfather Lance, she'd get only get one implant, but because she lives in Australia, she's got two.
Reporter Helen Vaughan shares Issy's remarkable story and the moment she heard sound for the first time.
Watch the video