Have the Wavemaster now since ner week and have to say I am amazed by this little mobile sound system. Positively surprised me alone already the manufacturer's packaging, namely a plastic and not a simple cardboard box. What nevertheless prompted me to give only 4 stars, is the fact that the supplied cloth bag does not stay closed up, as this simply opens alone repeatedly. The 3 rubber shoes are put on the feet only and fall frequently from the transport. I'm curious times when I lost the first. The sound quality, however, is really outstanding, especially in connection with the Poweramp app, where again, the volume can be increased enormously. All in all, I would buy the Wave Master again and also recommend. Especially really the battery by holding without reloading the entire eight hours of my shift at full volume.