If your kids love cars and the sounds they make, then this is the app for them! There are 21 cars and trucks and pressing each one will make a different car related sound. Also you'll get a little vibration for more excitement! From engines revving to tires squealing, your child will love it. Great way to keep them busy when they are bored. It runs full screen so you don't have to worry about them accidentally clicking other things. Kid tested and approved!