BRIO World 33977 Smart Tech Sound Deluxe Set - Interactive train with recording function in extensive complete set with storage boxes - Recommended from 3 years

["Clear the way for the ultimate Smart Tech Sound experience. The Smart Tech Sound Deluxe Set includes 91 pieces of pure railway fun with many highlights of the interactive Smart Tech Sound product line", "The battery-operated train responds to the Smart Tech Sound Railway Workshop, the Action Tunnels, and the Mountain Tunnel with exciting light, sound, and motion actions: Children playfully learn the principle of cause and effect", "With the Smart Tech Sound App, the train can be controlled with a smartphone or tablet. In addition, more exciting sound effects can be played", "Recommended for children aged 3 and up", "BRIO toys carry the FSC label and contain only wood from sustainable forestry"]