Your child will look forward to play time with the Melissa & Doug Vehicles Sound Blocks With Wooden Tray. This model is designed to help kids ages 2 years and up to develop fine motor skills, as well as visual perception. Hear the sounds of 6 favorite vehicles when the two wooden cubes are properly placed in the wooden tray. The fire engine and steam train are among the featured vehicles in this match and listen activity set. The realistic sounds act as lively encouragement when children put together the halves that match. This Melissa & Doug puzzle needs AAA batteries to operate.