POP, drop and watch your little one stroll along with the exclusive red pop-a-balls push and pop bulldozer by VTech! this delightful bulldozer encourages movement and motor skills in your little Builder when the colorful balls pop up through the chimney, into the scoop bucket and back again. Load the balls into the bulldozer, start pushing the chunky handle and then watch the bulldozer come to life with Poppin' balls and fun tunes! your little one can also sit and play with the bulldozer by pressing the buttons to learn colors, numbers and music. This interactive bulldozer requires 2 AAA batteries (batteries included for demo purposes only, replace new ones for regular use).