This Balance bouncer can be used as both a bouncer and a comfy chair From the time your baby is newborn (at least 8 lbs/3.5kg) and until she or he has learned to sit-up unaided, it can be used as a bouncer. When your child has learned to walk and sit independently, you can reverse the fabric to create a comfy chair(up to 29 lbs/13kg or approximately 2 years of age) The enjoyable rocking develops your baby's motor skills and balance in a natural way,No batteries required Our bouncer does not run on batteries, it runs on playfulness Made with safe, easy-to-clean fabrics Compact for easy transport and storage