BRIO Smart Tech Sound Action Tunnel Travel Set

This 37-piece interactive toy train set uses Smart Tech Sound technology that allows the battery-powered Record & Play Engine to communicate with its surroundings. The engine automatically responds to Smart Tech accessories with train actions such as multicolored lights, motion and sounds that enhance the imaginative play. Program your train track layout the way you want to play and begin your BRIO World adventures. There is a free app you can download which comes with additional sounds to program into the engine, as well as a remote control to make the engine go forwards, backwards and to make it stop.