2-year-old Kaiden Orantes lost his hearing after his birth and was diagnosed with progressive hearing loss. To help him gain some sense of sound and encourage him to speak, Doctors fitted him with two special-made hearing aids. In a video taken seconds after the aids were turned on, his mother said a few words to him to see his reaction. The moment Kaiden realized he could hear, his face lit up and he started dancing and jumping with excitement. Watch the video after the cut.