VTech Connect-a-Pillar Snap the colorful segments together in a variety of ways to create an interactive caterpillar; connecting the segments to the head trigger playful responses Each one provides sensory stimulation and encourages motor skill development when played with and connected together; light-up antennae flashes with the sounds 4 segments have fun interactive features that include rattling beads, a spinner, clicking sounds and tactile features; press the heart button or connect the segments to hear 50+ fun phrases, songs and sounds When pushed along the floor, the caterpillar wiggles and plays cute sounds and music to encourage crawling; heart button introduces colors, feelings, triggers phrases and plays music Requires 1 AAA battery (battery included for demo purposes only; new battery recommended for regular use); intended for ages 6 months to 3 years