2.Switch upgraded,volume can be adjusted now! 3.Lion can rotate 360 degrees,and can rotate the small ball 4.Music tray is removable and can be hanged on baby bed/baby buggy. 3.Padded seat, removable for washing 5.Folds flat for easy storage and travel 6.3 height adjustment settings for a customized ride 7.Rear grip wheels reduce movement to provide more safety 8.The rear bar of base could be detachable 9.2 in 1 walker and pushable walker