The product was in the belly, a rather high volume especially compared to its size. By cons it seems very fragile, it opens to become bigger but I do not see the usefulness, pt be that the sound changes, I have not noticed yet, anyway. Small problem, it is very fragile, I received 2, one with a broken cords (walking but not retract) therefore handle with care. I contacted the seller about that, I await his answer.
