It starts out as an infant rocker or stationary seat with entertainment overhead. Then, as your child grows, you can easily remove the toy bar and convert the seat to a toddler rocker! And with two comfy recline positions, calming vibrations, and a machine-washable seat pad, what's not to love? Use from infant to toddler (up to 40 lbs/18 kg). Required 2 x C batteries (not included).