It's the beautiful moment that captures your heart. Seven-week old Lachlan Lever hears for the first time.
Victorian couple Michelle and Toby Lever filmed their little boy getting fitted with hearing aids and his priceless reaction to their voices.
After posting the video on YouTube, the pair have been inundated from around the world with well wishes.
"Our beautiful son Lachlan was diagnosed as having moderate to severe hearing loss in both ears," they posted on the video site.
"When he was seven weeks old he received his first hearing aids. His reaction when they were turned on was truly amazing. We cried from happiness. Our beautiful little boy is now two years old and doing remarkably well."