The first charging takes about 6 hours (with the supplied AC adapter) and then can be losgelegt immediately. Mobile (HTC) and tablet (Fire HD) recognize the device immediately, and the speaker does what he should do. According to - quietly - stop work on the large buttons on the upper surface, without which one has the feeling of pressing buttons is really fascinating.
But that's not all, finally, there is also an audio cable that fits for simple mp3 player or even 'old' TV sets. But here also it quickly becomes apparent that the speakers are not miracle things, because the quality is not better just because they connect. In plain English: When the TV in the bass range is weakening, the speaker can not compensate. However, there is this problem even in very noisy setting, when it comes to the smartphone. With normal volume All is well, but the louder, the more 'schrebbeliger'. As I had expected more, because of the very robust shape and size.
Conclusion?
For normal use very well to provide sound a hall rather unsuitable (but that's also not the intention).