I rated this little speaker 5 stars, as it blown me away with the sound quality. Obviously it is not hi fi system, but is far better than I expected. All this with very good build quality and low price. I going to buy another two, one extra for myself, as these speakers can be join together in to one source and another one for someone else.
Now I will do some job on my bikes in the garage listen music off these, instead of play music of the Galaxy S3 speaker :)
Recommended product. I cannot remember when last time I've been so pleased with purchased gadget.