The Baby Einstein Ocean Explorers Light and Spin Toy "Opus" supports multisensory learning with lights and bright colors. It keeps your baby entertained at home and on the go. Your baby will love watching Opus the octopus light up and spin its tentacles with every press. They will joyfully explore the textures, sounds, and vibrant colors of the toy. Parents, on the other hand, appreciate the opportunity for early learning about colors and the connection between cause and effect, as well as the visual stimulation. With a strong suction cup, Opus adheres to most smooth, hard surfaces, helping your baby press, spin, and learn at home and on the go. The toy featuring the popular Baby Einstein octopus Opus is wipeable and requires 3 AAA batteries.