The playback quality is not bad, at least they exceed the built-in speakers of my laptop considerably. Music - well, but quite noisy.
What, however, soon turned out: This dwarfs need with its capacity of 2 x 3 Watt quite a lot of electricity, and as wonders if the long term is the USB port of a laptop conducive. That being said, of course, reduces the runtime of the notebook on battery power mightily!
Hence my recommendation to separate the things in the mobile operating time once they are no longer required.
Optionally, there is that I have taken the product description, a network connection unit for this product, and an "Input" it's also available at one of the speakers. But unfortunately I have never found a delivery notice to do so. I regard this as a very serious shortage because the steady continuous operation I keep a mains connection is essential.
My advice: Pay attention to the motivation of your laptop if you buy speakers with no possibility of a network connection. 2 x 3 Watt are possibly too much.
I have these two dwarfs bought in late 2013 for 3.85 + 1.95 shipping = 5.80, a good relationship mE between price and quality. The offer is unfortunately disappeared ...