What a terrible product
I have been using the Pump In Style both at work and home but I wanted a pump for home so that I could stop carrying the larger one back and forth. I got this one and just about threw it across the room the first time I tried to use it.It is very loud, very weak, and sort of mashed my breast tissue. I started to have occasional painful twinges in one of my breasts after starting to use this pump, and since I stopped that has gone away. I had been using it with the AC adapter but on a business trip had to use it with battery and that was even wimpier.If I hadn't already been using the Pump In Style I think I would have just concluded that pumping is miserable and doesn't work. Luckily I know better - instead I know that this is just a piece of crap product. Please, don't waste your money on this! Buy or borrow a proper pump and it will make all the difference in your comfort, production, time, and will quite probably make it possible for you to breastfeed for longer.