In view of its size I was expecting the worst, fortunately I was wrong ... After easy connection to a mobile phone (my 12 year old daughter did it all alone) I discovered undistorted sound, light and powerful, Of course this is not HIFI, but compared to built-in speaker of a laptop no "photo". So we have a small speaker of good quality, clear sounding, comes with a cover, ability to take calls, and more with a proper autonomy That happiness ....