VTech Go! Go! Smart Wheels National Flag Vehicles 2-Pack (Amazon Exclusive) Press each toy vehicle's light-up button to hear three sing-along songs and learn the first letter of the vehicle's name. Roll the vehicles over SmartPoint locations on go! go! Smart wheels playsets (each sold separately), and they'll respond with different phrases and more Push the vehicles to hear fun sounds and melodies. Push them again to add fun sound effects. The SmartPoint vehicles also work with go! go! Smart animals tracks (each sold separately) These toy cars are intended for ages 1 to 5 years; the push toy cars require a total of 4 AAA batteries (2 for each vehicle) which are included for demo purposes, use new batteries for regular use. Automatic power-off saves batteries