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The first or stimulation phase is used during the first two minutes of pumping to simulate your baby's initial rapid suckling to initiate faster milk flow. The pump then switches to the second or expression phase which simulates your baby's slower, deeper suckling for maximum milk flow in less time. You can easily switch between the two pumping modes during expression with the touch of a button.

The Pump In Style Advanced comes complete with a stylish backpack that to helps maintain your privacy when toting pumping supplies to and from work. A photo pouch on the bag allows you to display a photo of your baby to make milk expression a more comforting experience for you. The included cooler carrier and 4 milk collection containers allows you to store and keep expressed milk cold until you get home. This pump can be operated with the included AC adapter, AA batteries or a car adapter (Not Included). The Pump In Style car adapter is sold separately. Built in to the back pack motor.