Re: Need portable speakers
Ok, I didn't read your original post close enough. All of the self-powered PA's will require electric. But that's ok, since you want to stay in a lower price bracket.
There are several small speakers that would be battery powered. I am listening to some from Radioshack right now. I also have a pair from Koss at home. The problem that you are going to have with battery powered speakers is that to produce a large amount of sound, it takes a large amount of power. Typically, I don't think that battery powered speakers can produce that (or at least not for very long). You could look into a boombox that has an input jack, but the speakers tend to be small as well.
Does the dock have electricity? If so, that opens up a whole new arena that you can look into.