The Spectra S2 Plus soft pink electric breast pump is designed to bring confidence and comfort to every moment of the breastfeeding journey. The S2 is quiet and discreet for soothing pumping, and yet weighs only 3 lbs. Our Founder, Heidi Humphries, insisted on the quietest motor available for the S2 Plus, which when in the “massage mode” simulates the natural suckling of baby. Spectra Baby spent years developing features for the S2 Plus like “backflow protection” to keep your breast milk from harmful bacteria. We thought hard about things like “adjustable suction levels” because that provides a more natural flow of milk.