The Baby Einstein Ocean Explorers Opus’s Look Sea Listen is a soft, musical plush toy that engages and soothes baby with music, high contrast colors and patterns, and multiple textures. 6 classical melodies comfort baby, and bright, high contrast colors engage baby’s sense of sight. Varied textures and ribbons encourage tiny fingers to explore and promote tactile stimulation. Small plush is made for soothing at home or on the go. Features Opus the Octopus from Baby Einstein Ocean Explorers show. Appropriate for infants ages newborn and up. Wipes clean. Includes replaceable 3 LR44 batteries.