Designed for daily use for moms who pump several times a day thanks to its patented, research-based 2-Phase Expression TechnologyClosed system with overflow protectionAll-in-one solution for your on-the-go active lifestyle - fits into your pocket, purse or baby bag for easy access and portability, weighs less than 1 poundModern design and an easy-to-use digital display and back lightingRechargeble battery, USB charging cable and connectivity to the MyMedela app provides convenient pump operationIncludes 2 sizes of PersonalFit Flex breast shields to promote increased milk flow and more comfort while pumpingMedela is the #1 mom and doctor recommended breast pump brand in the U.S.*