An amazing little speaker

Delivers a small but very interesting, powerful and much nicer than its competitors of similar size (I think in particular the X-mini)
Its well-balanced, low present without being too artificial, as is often the case for products as small. We feel the quality JBL: it is a pleasant enclosure tuned for listening to music and not just a product for "making noise".
The volume can be pushed at a fairly high level without too much distortion.

The jack cable is quite short and non-removable, so as to be easily stored in the enclosure.
This is very convenient but the "non-removable" side worried me at first: if it breaks that becomes my pregnant? Well just use a standard jack / jack cable and plug it into the free plug! This is also the way that I use most often, the original cable is a bit short for my taste.
Autonomy is very correct medium volume, and it can be used while charging (micro-usb classic, therefore possible connection to a PC or a mobile phone charger)

Small handy tip: the loop to switch and thus a carabiner to hang the speaker almost anywhere.
For 10 or 15 more you have version "Wireless" (bluetooth) in the same enclosure, for you to judge whether the extra investment will help.