Super Quiet The Electric Breast Pumps motor works at low noise, It makes you feel very natural and lets your baby have a good sleep. 1.Cleaning and sterilizing before using double breast pump for the first time and after each use of your breast pump. 2.Apply hot towel to warm your breasts and then massage your breast to stimulate lactation before expression. 3.Fresh expressed milk should be stored in the refrigerator or freezer. 4.Thawed milk must be drunk within 24 hours and cannot be frozen again. Soft Massage Cushion The petal cushion made of soft silicone,Imitate babyâs sucking rhythm ,comfy and pain free to breast. Safe Material No BPA, PVC, and Phthalate pp,silicone material ensure that your breastfeeding milk natural and safe, no harmful chemicals. Outdoor Use Lightweight and portable,Built-in large capacity 800mAh battery makes it can be used anywhere without plugging in,good for travel.