Summary: I wish it had knobs to control the volume. It's a little loud, but otherwise ok. I like that it gets its power from the computer and I don't have to plug it into the wall. There's no outside interference.
Summary: I love that it is simply plug-n-play with the USB serving as both the connection and power source. They work great with my daughter's Windows 7 laptop. The sound quality is wonderful. I only wish that the speaker volume could be controlled independently as with analog speakers. Other than that, for the price, you cannot go wrong with this purchase.
Excerpt: The speakers are good enough for viewing news and tv, on my laptop, but they lack the dynamic range for good music rendition. A manual volume knob rather than the up and down buttons would be nice, as would a headphone jack, but, for the thrifty buyer, they are fine.
Summary: My main reason for buying these speakers was because they were USB powered. they are a digital output type, and are very loud to be such small speakers. you get your moneys worth for this product. there are 3 buttons to adjust the volume, +, mute and -. At first time use the main volume for my computer only had to be 2, as the speaker output is louder than the PC volume.