As we opened the box we realized how easy the walker was to put together. You mainly just need AA batteries. Once we had it on the floor we realized the motion of the wheels powered the little spiral propeller on the front. But the lights and the sound were too much at first for our little one. It took a minute to open up to the walker (so at first the baby's interest went to the car toy part). Once baby understood the sound and the lights are activated as s/he walked (and mommy turned the volume down), baby was actually trying to stand and push the walker. It honestly took a week for the baby to actually take the first (supported) steps. Now s/he loves it and uses it to walk all around the house. It's a great purchase because as the baby pulls down to sit, the walker has some "breaks" that for the most part prevent it from tipping over. And baby gets to see what his/her body is doing as they take those first steps (unlike the walkers where you sit the little one but the view to their own feet is blocked). Totally worth every penny.