Review for LEGO set 10874 Steam Train from ttpm.com
“The Lego Duplo Steam Train, item number 10874, is an interactive building toy for toddlers and preschoolers. This is a 59 piece building toy that's ideal for preschoolers. Once built, this is one exciting train with a caboose on a track. This toy has lights and sounds,... More special action bricks, and a push and go motor. The Action Bricks are placed on the track and the train reacts to the action as it chugs over the brick for music, sounds, reverse and more”
Full review at ttpm.com