Bought the thing a month ago, for a long trip. 1.5 liters to 1.3 kilograms, the right size for the bag. Opinion divided between wonder and disappointment: the audio spectrum and volume significant for such a small volume, many serious, but often too. His report can be excellent but it is not easy to position it well. In most cases the grave is uncomfortably bloated. For now, the best results are obtained by placing the middle of the listening room (away from any surface reverberation) on a support as inert as possible (a thick glass table for example).
Instability problems in use BlueTooth with Windows 7.