Improved! 2-Phase Expression& Technology research-proven for faster milk flow in less time, allows moms to change back & forth from stimulation to expression. Daily use. All the features of our highest performing retail pump in a fashion bag with everything mom needs to pump on-the-go, in style. Removable cooler carrier & pump in matching carry bags enables use as separate bag for mom's other needs! Removable work surface for the mom on-the-go. Roomy shoulder bag with inner compartments for all mom needs for accessories and personal items. Two mesh storage bags designed to hold all parts and pieces for pumping. Includes SoftFit Breastshields. Special bonus pack of accessories! Includes AC Adapter and Battery Pack with soft cover (8-AA sold separately), or use with 9 Volt Vehicle Lighter Adapter (sold separately).