Pump In Style Advanced is a daily use double electric breastpump designed for moms who pump several times a day. All Pump In Style Advanced breastpumps offer portability for discreet pumping anywhere. The On-the-go Tote features a convenient built-in pump. Features 2-Phase Expression technology with one-touch let-down button: Produces more milk in less time when pumping at Maximum Comfort Vacuum in the expression phase Daily use - double-electric breastpump: Designed for moms who pump several times a day On-the-go Tote & Backpack have a built-in pumpThe Metro Bag has a removable pump: For portable, discreet pumping Three stylish microfiber bags to choose from (On-the-go-tote, Backpack, or the Metro Bag): Holds everything you need to pump Battery pack (The Metro Bag''s is in a soft pouch): Lets you pump anywhere, anytime. 8 AA batteries not included Single knob speed/vacuum adjustments: For comfortable pump settings Removable cooler bag with contoured ice pack: Holds 4 breastmilk bottles and ice pack to keep breastmilk bottles cool All parts that touch breastmilk are made without BPA: Safe for you and your baby On-the-go Tote also features:- Built-in bottle holders- Tubing storage pocket: Help prevent spills and keeps tubing organized between pumping sessions The Metro Bag also features:- Two sizes of PersonalFit breastshields- Removable pump in a separate bag- Work surface and mesh storage bags: For pumping and transport flexibility