Numbers Sound PuzzleLearning to Count Has Never Been This Fun Give little ones a head start with numbers they can see, touch, and hear! The Numbers Sound Puzzle by Melissa & Doug makes learning 1 through 20 an interactive, rewarding experience. When the correct number piece is placed into the puzzle, the number is spoken aloud instant positive reinforcement that keeps kids engaged and coming back for more. Interactive sound puzzle speaks each number aloud when correctly