The Medela Harmony Manual 2 Phase Breastpump is a compact and efficient manual breast pump that mimics a baby's natural nursing rhythm through its innovative 2-phase expression technology. This lightweight pump is ideal for occasional use and as a backup to electric pumps. Key features: • 2-Phase Expression technology mimics natural nursing patterns • Ergonomic swivel handle for comfortable pumping • Lightweight and portable design • Easy to clean and assemble • Manual control over pumping rhythm and suction strength The pump features two distinct pumping phases - a faster stimulation phase to trigger milk flow, followed by a slower expression phase for optimal milk collection. The handle can be used with either hand and allows for easy switching between phases. All parts that come in contact with breast milk are BPA-free and can be sterilized through boiling or steam sterilization.