It’s a gold rush at the Go. Go. Smart Wheels Treasure Mountain Train Adventure by VTech. Turn on the motorized freight train and watch as it chugs around the tracks, through the tunnels and up hills on its own. The freight train responds to the playset's nine Smart Point locations with fun phrases, music and more. The gold mine also includes rotating gears, a crane to move the shape pieces around and a mine shaft where you can pretend to mine for gold. Press the toy freight train’s light-up button to hear three sing-along songs and learn the letter "F" and the name of the vehicle.