My daughter just turned three and she's already matching the numbers to the pictures underneath on her own. The voice saying each number when she sets a piece down keeps her coming back to it way longer than her other puzzles, which honestly surprised me.
Ellie★★★☆☆
The pieces are easy for my son to grab and place, and the number sounds are clear enough. That said, the puzzle only speaks when a piece is fully pressed down, which takes some extra force from little hands. It works, but the response could be more forgiving.
James E.★★★☆☆
The sound only triggers when my daughter places a piece just right, which frustrates her when she's rushing. The wooden pieces are sturdy and easy for small hands to grab, but I wish the volume had a lower setting because it's pretty loud.