Elvie Pump is a smart, slimline wearable electric breast pump with 5 oz / 150 ml capacity. At the heart of every Elvie Pump are miniature, coin-sized Piezo pumps that make it smaller, quieter, and smarter than any other. That way, you can pump smarter, not harder. Its truly slimline, wearable design tucks discreetly in-bra. And once in place, control Elvie Pump from the app for a seamless experience—leaving you free to roam where other motherpumpers dare not go.