If you are going back to work full-time the Medela Pump in Style is for you. It is expensive, but the time it saves you means it's well worth it. It features Medelas unique two-phase expression pumping which mimics breastfeeding. First rapid to induce milk let-down, followed by a more relaxed pace (Expression phase) You can adjust the vacuum and speed for comfort. Like all the other Medela pumps it is easy to clean, assemble and use. It comes with a battery pack/ car adapter and a cooler carrier to store milk and 4 milk storage containers.