Listen to the voices of eight favorite zoo animals when the puzzle pieces are correctly placed in the puzzle board! Each animal piece has a matching full-color picture beneath. Eye- and ear-catching puzzle enhances matching and listening skills. (TIP: Puzzle has light-activated sensors; for best results, expose the sensor by removing a piece in a brightly lit room, then make the sound play by replacing the piece in the board.) 2 AAA batteries required, not included