Musical Xylophone and Piano, Non Toxic, Non-battery Sound of the Nature: Gives Out a Crisp Sound When Pressed with Hands or with 2 Mallets. This helps kids to use their limbs and learn sounds in a very interactive and interesting way. The sound from the xylophone is natural sound without any alternations No batteries Gives Joy To Parents and Children. No Batteries Needed. Unlike the cluttered battery operated toy, this one is unique and gives finest sounds. Non-toxic Made With 100% Non-Toxic Material. Completely safe for kids. They will play with it for hours and have unlimited fun Helps in Hand-eye Coordination Sound Recognition Color Recognition Improves Cognition Fine Motor Skills