SPECTRA S1 Plus Electric Breastpump for sale. Almost New with Box. Purchased on December 2020 and used only few times due to unstable breastmilk supply. The Spectra S1 Plus is portable and quickly rechargeable for active moms, but also quiet and discreet for a soothing pumping experience. The added night light allows you to easily pump at any hour. This breast pump conveniently weighs only 2.9lbs.