Summary: The speakers have a nice design and are easy to handle. Practical, quick set up, nice travel case. However they sound tinny, if one turns the volume up the membrane starts to distort, the sound is thin and has no body. I wouldn't recommend this product.
Summary: In terms of portability, these speakers are excellent. They plug into a USB port (PC or Mac), from which they are supplied with both power and the audio signal. This means that no power cord or audio cable is needed. The right speaker has the USB cable and the left speaker plugs into the right speaker with a retractable 3 foot cord. So overall they are very portable and quick to set up.
Summary: I am not particularly happy with the product. The sound is really tinny and cracks up midway up the volume range. The audio performance should have been better with a speaker priced close to $80. The only benefit is that it runs on USB as well, but then the sound output drops to half. Overall, will not recommend to others.