Medela brings the iconic Swing Maxi Flex into the modern age with a revamped, contemporary and stylish Swing Maxi. Improve your mobility thanks to the built-in rechargeable battery that lasts up to 6 pumping sessions. offers flexibility and the comfortable, effective pumping experience you deserve. More milk in less time. Like its predecessor Swing Maxi Flex, the new Swing Maxi is a dual pump that allows you to express milk from both breasts at the same time, to make your pumping twice as fast. Furthermore, it has been proven that pumping from both sides at the same time produces up to 18% more milk 1. Technology2-Phase Expression. During a feeding session, babies start by using short, quick sucks to stimulate the Milk Ejection Reflex. When milk starts to come out, babies switch to a slower rhythm of their own to effectively feed. Medela's 2-Phase Expression technology mimics your baby's natural sucking rhythms – fast to stimulate milk flow, then slower to deliver optimal milk flow. PersonalFit Flex Funnel With a 105-degree opening angle, smooth rim and oval shape for a better fit, the PersonalFit Flex nipple puts less pressure on your milk ducts than traditional nipples, resulting in a more effective and comfortable pumping experience. . More comfort for you, up to 11% more milk for your baby – clinically proven 4. Two funnel sizes included: 21 mm and 24 mm. Express milk wherever you are, even where there are no outlets. With the innovative USB Type-C connector available, the built-in rechargeable battery charges faster than the micro USB port, lasting up to six pumping sessions when fully charged. Intuitive and hassle free. Swing Maxi has nine pre-programmed settings that you can choose and control with the help of four easy-to-use buttons. Made from fewer parts, the Swing Maxi Double Electric Breast Pump makes assembly and cleaning child's play. What's included: 1 Swing Maxi motor unit 2 150 ml vials with cap 2 vial holders 2 x PersonalFit Flex connector 2 21 mm PersonalFit Flex funnels 2 24 mm PersonalFit Flex funnels 1 USB charging cable 1 USB power adapter 1 Swing Maxi instructions for use