The Medela Pump in Style Advanced with On the Go Tote combines an award-winning double electric breast pump that has consistently been chosen for over two decades by busy moms with a discreet, stylish tote bag for easy portability and transportation of the pump and all necessary accessories to ensure convenient pumping at home or away. Now includes convenient dual-voltage for 110-240V, allowing moms to easily use their Pump in Style Advanced Breast Pump while traveling outside the U.S. Engineered to more closely mimic a nursing baby with patented, research-based 2-Phase Expression technology which produces more milk in less time** for efficient expression and maximized flow. The On the Go Tote helps keep bottles, tubing, and other essential components and accessories neatly organized for convenient transport anywhere. Try the Medela Pump in Style Advanced and find out why decades of moms have made Medela their first choice for all their breast milk feeding needs. What’s Included: (1) Built-in breast pump; (1) Portable battery pack; (1) Removable cooler bag and (1) contoured ice pack; (4) 5-oz. 150 mL breast milk bottles with lids***; (1) Double pumping breast pump kit includes: 1 set of PersonalFit Breast Shields 24mm, 2 breast shield connectors, 2 valves and membranes, 1 set of tubing; (1) Power Adaptor dual-voltage 110/240V; Instructions for Use. *IQVIA ProVoice Survey, September 2018-August 2019; **When comparing double pumping to single pumping, with 2-Phase Expression technology at Maximum Comfort Vacuum; ***All parts that touch breast milk are made without BPA. If you have any questions or an issue with your Medela pump, please contact Medela (toll free) at 1-800-435-8316 before reaching out to your place of purchase. Our award-winning customer service team is ready, willing, and able to answer any, and all questions you may have!