I'm from a small device very enthusiastic. it fits in your pocket forever, holding battery, charge via the same USB connector as my samsung note (so the charger can charge the note to use and does not always have via USB to the PC ran), the volume is great. and that's what I was doing. the normal volume of my note was too quiet (music playback, YouTube videos, etc.) and with this little device I can compensate for that now. The only negative: the jack cable, which is integrated in the device (can be super in the bottom of the speaker stow) is unfortunately a little short. I would hope there is a longer cable. but you can not have everything. Nevertheless, strong buy recommendation!