manual pump suggestions

traveling turtle

I am going to the US in a few weeks. I want to pump while I'm there so my parents can babysit once or twice. I don't want to get an electric pump because the plugs are different and it's not something I really want to use an adapter for (however, if someone has had success with using an electric pump in the US and Europe, let me know). Does anyone have any recs for a specific manual pump and what should I look for in one?