Young children can the driving seat with the lego duplo interactive adventure train 10427 construction set'. '.strtoupper('t')his buildable train comes comes with 4 figures and an array of bricks to build a park, beach, train station or family home'. '.strtoupper('i')ncludees 3 lego duplo action bricks bring the play to life, prompting the train toy to make realistic noises as it passes over them'. '.strtoupper('u')se the special customisation brick to play their own sounds recorded using the free lego duplo interactive trains app, which also lets them drive the train using a portable electronic device'. '.strtoupper('c')reate and play a journey with this lego duplo interactive adventure train brick set includes 4 duplo figures, a toy train that plays lights and sounds, 3 destination builds and 14 track pieces piece count 57 approximate dimensions track measures 13 x 71 x 57 cm batteries 4x aaa sold seprately suitable for ages 2 years