Inspire hearing. Stimulate vision & hearing. Develops hearing. High contrast colors & bright red help vision develop. At 0+ months baby begins to: distinguish the difference between sounds; turn toward the source of a sound Pick out her mother's voice from those of other women. Baby's Eye View: 0+ months: Babies' color vision isn't fully developed yet; bright reds and oranges are the easiest to see. Interaction Ideas: Hang bugs from baby's car seat and ...