Baby Einstein Remove all plastic components and other packaging parts before giving the toy to the child. Keep all relevant information and packaging for future reference. BATTERY WARNING: Never use different types of batteries together or mix old and new batteries. Always remove batteries when the product is not used for a long time or if batteries are exhausted. Do not use damaged batteries. Use only alkaline batteries. Insert batteries so the polarities are correct. Never attempt to recharge non-rechargeable batteries. Never short-circuit the battery holder. Toys