The Medela Swing Flex electric breast pump is a compact and portable device designed for comfort and efficiency in breast milk pumping. It uses Medela's patented 2-Phase Expression technology, which mimics a baby's natural nursing rhythm to stimulate milk flow and then express it. Key Features and Specifications Flex technology (PersonalFit Flex): The device comes with oval-shaped breast shields with a soft, flexible rim and a 105-degree angle, which reduces pressure on the breast and supports better milk flow, providing more comfort and efficiency. Two-phase operation: It automatically switches from the stimulation (faster) mode to the expression (slower) mode after two minutes, and you can switch between them manually as needed. Multiple suction levels: Allows you to choose from 11 different vacuum setting levels in both stimulation and expression modes to achieve your desired comfort. Compact and portable design: The device is small, lightweight, and easy to use, making it ideal for use at home or on the go. Closed and hygienic system: It features a closed system that prevents milk from flowing into the tubing, ensuring hygiene and safety.