Interactive learning baby Walker has a removable play panel; Early learning center has 5 piano keys that play music and encourage creativity; wheels work on carpeted and hard floors Features 2 colorful spinning rollers, 3 shape sorters, and 3 light-up buttons that develop motor skills Pretend telephone handset and mechanical elements enhance role-play fun; 2 AA batteries are included Over 70 sing-along songs, music, sound effects and fun phrases; meant for babies and toddlers 9 months to 3 years old