This puzzle features interactive sound effects that activate when pieces are correctly placed on the board. Each piece triggers a realistic musical sound when positioned properly. The light sensor mechanism responds when pieces are lifted or replaced, enhancing the auditory feedback. The recordings are high-quality with clear sound reproduction. The puzzle operates on 2 AAA batteries, which are not included. Designed for children ages 2 to 5, it provides hands-on, screen-free play suitable for toddlers and preschoolers.