Differentiating and naming sounds ... The sound boxes promote acoustic perception in a playful way and help children to differentiate and name different sounds. Matching sound pairs trains attention, concentration and auditory memory while stimulating speech development and preparing for musical experiences. The two boxes each contain six robust wooden boxes with red and blue lids that sound identical in pairs and make different loud or soft noises. A wide range of exercises, such as sorting by volume or matching boxes from different rooms, enable varied and targeted support. Material: beechwood Measurements: wooden box: approx. 12.5 x 10.2 x 9 cm, wooden cylinder: approx. O 2.5 x 8.5 cm high 3 years and up