The Medela Harmony Flex is a single, manual breast pump designed for occasional use or as a backup to an electric pump. It features Medela's PersonalFit Flex breast shield, which is designed for improved comfort and more milk output. The manual operation allows for quiet and discreet pumping, and the pump is lightweight and portable, making it ideal for travel or on-the-go use. Its ergonomic handle provides comfortable pumping, and its intuitive design is easy to assemble and clean. It allows mothers to express breast milk whenever and wherever needed, providing flexibility and convenience in breastfeeding.