Baby Einstein Sea Dreams Soother Crib Toy is a musical infant soother • 25+ minutes of lights, music, & ocean sounds to soothe baby • Attaches to most crib rails with 10.5-inch circumference or placed on nightstand • Babies can turn the soother on themselves if woken in the night • Drift Off function softens lights & music every 10 minutes • For ages 0 months and up; Remote requires 2 AAA batteries • Dimensions: 8.7 x 11.9 x 5.22 inches; Requires 4 C batteries (not included)