It is important to know that this is a Resonance Speaker. So it depends on the type of substrate, on which the speaker stands. On a glass table he sounds different than z. B. on a wooden panel and its commitment a cloth underneath, attenuates the sound.
The volume can be directly on the speaker (on top of the silver ring with + and - touch-sensitive areas identified) set with gentle finger pressure. In addition, you can then reloading the PC again. The louder the sound comes from the speaker, the brighter the blue light is around the bar.
For such a small speaker sound quality is great. The connection is easy via USB to the PC.
From me there is a strong buy recommendation.
