Support babys first steps and early learning with the Baby Einstein Ocean Explorers Dive & Discover 3-in-1 Submarine Walker. With 3 height positions and 3 ways for baby to play and learn, infants 6 to 24 months will love to explore the sights and sounds of the sea in this submarine-themed walker. Sit-In Walker supports smaller babies. As baby grows, use Push- Behind Walker function to support independent walking. Ready for floor play? Detach the electronic toy station to let baby learn at home or on-the-go! Each press teaches colors, shapes or plays 20+ ocean sounds and melodies to encourage cause-and-effect learning. Fully foldable. Machine washable seat pad. Sit-in Walker supports infants up to 26 pounds or until baby can walk independently. Assembled dimensions: 19.5. x 28.6 x 25.4 inches. Requires 3 AA batteries