Choice of Experienced Mothers, the Evenflo hospital strength Advanced Double Electric Breast Pump is the perfect solution for moms with frequent pumping needs. Whether at home, work, or school, the Advanced Double Electric Breast Pump delivers all the premium features and benefits mom requires and deserves. This innovative pump's Perfectly Pure closed system design helps keep your tubing clean and dry by preventing milk from spraying or back flowing into the tubing or motor. This helps protect mom's breast milk from potential growth of bacteria, viruses and mold. Each pumping session can be personalized with the Advanced Control multi-phase technology, which provides independent speed and suction controls to maximize milk expression by promoting multiple let downs (or milk releases). The Advanced Double Electric Pump includes multiple, velvety soft silicone flange sizes to give you a custom fit for maximum milk expression and comfort. Also included is a battery power option so you don't miss a pumping session when you are away from an outlet. Plus, this breast pump works with the Evenflo Advanced Milk Storage Bag Adapters, allowing you to store milk faster and reduce milk loss when transferring from collection bottle to storage bag. As an added bonus, Evenflo is excited to include the ultimate breastfeeding education with the purchase of your pump. Developed by their partner, Breastfeeding Expert Shari Criso (RN, CNM, IBCLC), mom receives digital access to TWO practical and proven programs she can access anywhere! Both Simply Breastfeeding and Breast Pumps Briefcases have helped thousands of moms successfully breastfeed and continue breastfeeding while returning to work.