Summary: I now have two sets of this model, one for a co-worker. The buttons on the face do not respond b/c a driver is required that will not install on the protected thin clients we use, but you can turn the volume down from the player. They DO work on a regular station.
Pros: It runs power from USB so no 'wall wart' taking up outlet space. It gets sound from USB so only one wire for both! Good enough for workstation.
Cons: I wish I could find a slightly more expensive (belter fidelity) model. Also would be nice if the volume control was a potentiometer rather than these buttons that do not work on my thin client.
Summary: It works well, but I don't like the fact that the volume in tinis speaker is so low at time. The issue is that you can't really control it that much. I do not like that about it, and also no on/off button. The sound that you can hear is Okay.
Summary: After weeks of troubleshooting, these speakers turned out to be the cause of seemingly random system freezes. I tried everything, including replacing a possibly good HDD (AAARRGGHH!) trying to track down the issue. Turns out simply having these speakers attached was causing it.
Pros: Simple, no drivers. Truly plug and play.
Cons: Volume control moves system volume by 1 or 2 % each click. Changing volume with the speaker buttons is pointless. If your tower is to your left, you will need an extension of some kind to have the speakers on the correct side with a larger setup.
Summary: if you must have stereo sound in desktop speakers, i recommend spending more to enjoy it. for clients who simply need basic sound, i now buy the iHome iHM60 portable usb mono speaker. Logitech Z50 is also mono usb but i haven't tried it yet.
Cons: sound quality is noticeably worse than Logitech S120 which are not usb-powered.
Cons: Not sure if anyone else has the issue, but one of the speakers has a rattle to it when the volume is above 50%. There is nothing that is shaking around, just sounds like a piece of the speaker cone is hitting a wire or some loose thin metal. Its not noticeable after a while.