Note these were all on sound card(s) where other speakers had worked fine... so one good experience, and three bad ones. They were pretty cheap, in that I didn't return them, but left an appropriate review in the end.
They were mainly gifted out (and later thrown in the trash) to friends at work, etc. I got mine so I could have a set of speakers to hear the occasional audio at work at the time... which worked great.. I got some of the same for a couple coworkers, and another set passed along when I'd upgraded my computer at one point.
I have M-Audio AV-40's speakers on my desktop at home, and Mackie CR3's on my spare... both are great sets of speakers I can't say good enough things about. Given it's a $10=15 pair vs over $100 ... I wasn't expecting huge sound from the Amazon speakers, that said, I've seen other speakers in that price range that worked far better.