DEVELOPMENT OF INTELLIGENCE: Infants are dealing with the enlightening period of intellectual development, and there is great potential in their brains. This product can exercise their understanding ability, imitation ability, reaction ability, and cognitive ability in a scientific way. PERFECT PHONE FOR BABY TO HOLD & HEAR -- 3 levels volume control to adjust the volume according to your needs.The international standard volume design protects your baby's ears and hearing.Also the phone is perfect size for babies hands, and there are no sharp edges. Safety&Cute EarThe shell is made of non-toxic wear-resistant material, and the made of safe silicone material, which is safe to touch and bite. Great for reducing kids teething pains. MULTI-FUNCTION: Built-in 13 functions, 12 independent light buttons, more than 100 sound effects, two levels of volume adjustment. It is able to quickly establish the baby to the basic knowledge. TIPS FROM EARLY EDUCATIONAL EXPERTS: This baby cell phone toys develope a strong sense of curiosity and like to imitate their parents. The baby Toy Phone is sure to keep your little one entertained. It's a great birthday, Christmas, or Easter present toy