Need a private place to pump? How about your car? The Medela Breast Pump Vehicle Power Adapter, 12 Volt, Portable, Black, 8ft Cord, 67153, 1 Each is a convenient alternative power option for Pump In Style Advanced breastpumps (manufactured prior to January 2008), Lactina, and Freestyle breastpumps: Not for use with the Symphony, Single Deluxe, or 9V Pump In Style breastpumps. Features an 8-foot long cord, giving you some extra room to charge your pump in your vehicle. Use of the portable vehicle adaptor will slightly increase the pumping speed of the Pump In Style breastpumps: Adjust pumping speed accordingly for comfort. Adaptor may not work with all vehicle lighter outlets: Refer to your vehicle owners manual to check compatibility with your vehicle lighter.