Pump In Style with MaxFlow Features & Benefits Hospital Performance: Inspired by our hospital-grade (multi-user) Symphony® breast pump. More Milk in Less Time: Advanced motor technology generates vacuum with MaxFlow™ micro-vibrations for effective breast milk expression. Combined with our PersonalFit Flex™ shields which are clinically proven to increase milk volume by 11.8%.* Closed System: Prevents milk from entering the tubing when using PersonalFit Flex™ connectors. Use with other connectors can cause irreversible damage to your breast pump. Easy to Clean: Few dishwasher safe parts are easy to clean and assemble. Easy to Use: Medela's combined speed and vacuum settings, pre-programmed based on our extensive research in breastfeeding and pumping, take the guesswork out for more effective pumping. Comfortable Pumping: Two sizes of PersonalFit Flex™ breast shields with soft rim and oval shape for more comfort and a better fit*, 21mm & 24mm. Mimics baby's natural sucking rhythm: With Medela's clinically proven 2-Phase Expression® Technology there isn't a need for any additional suction phases. Safe For You and Baby: All parts that touch breast milk are made without BPA. Includes everything you need: All the essentials to pump at home or away, including battery pack, cooler bag, extra bottles with lids and stylish carrying bag. Extra Battery Pack: Includes a battery pack for convenient pumping away from the power. Lightweight: Only 1.18 pounds makes it easy to take to and from work. Maximum Comfort Vacuum: Designed for mom to find her maximum comfort vacuum without worrying about what level she is at.