The MiniElectric is the most well-known, handheld electric breastpump with automatic suck-and-release - with no buttons to push. Ideal for moms who nurse for most feedings, as well as occasional use. Adjustable one-handed suction control for maximum comfort. Lightweight, compact and portable. Single pump for a single-user. Operates with AC Adapter (included) or 2-AA batteries (not included).