12278 Baby Milestones Infants reach predictable milestones in normal hearing development. Infants reach predictable milestones in normal hearing development. 01:01 61 http://s3.amazonaws.com/eiivideo/public/assets/image/12038/c5_v2.jpg http://s3.amazonaws.com/eiivideo/public/assets/flash/11690/high_c5_v2.flv http://nowihear.einsteinapps.com/video/player/12278-baby-milestones