The Pump In Style® Advanced Battery Pack uses 8 AA alkaline or rechargeable batteries. The black microfiber carrying case fits inside your breastpump bag, or can be attached to the bag strap for easy transportation.
Battery pack for your 9 Volt Pump In Style® Advanced breastpump: For use with 9 Volt Pump In Style Advanced manufactured in 2008 or later
Powered by 8 AA batteries: Batteries are not included
Microfiber padded battery pack: Lets you pump anywhere, anytime without an electrical outlet
Provides up to 2 hours of pumping time: For more consistent pumping performance, use rechargeable batteries. Each will provide up to 2 hours of pumping time