From Baby Einstein, our best-selling Sea Dreams Crib Soother is a musical infant soother that features 25+ minutes of calming lights, melodies, and ocean sounds; gently soothing babies for over 10 years This new parent must-have, easily attaches to most crib rails with an approximate circumference of 10.5 inches; can also stand alone on a nightstand for bedside soothing and engagement Remote control lets parents stop or activate the soother from up to 12 feet away and babies can turn the soother on themselves if woken in the night; Features high and low volume control 4 modes let parents customize soothing to baby’s preferences for lights, music, and sounds; Drift Off function gradually dims lights and sounds to help lull baby to sleep For ages 0 months and up; Dimensions: 8.7 x 11.9 x 5.22 inches; Remote requires 2 AAA batteries (not included); Soother requires 4 C batteries (not included); Wipes clean