Although the second function has given its name to the device ("JBL Charge"), for me it's relatively anecdotal.
The main function of this device, this is all we can provide an amplified music, without wires.
From this point of view, it works perfectly:
The manual is succinct but finally sen spell because this is intuitive: It takes his iPod or smartphone, it goes into his "Bluetooth" menu, and placed mode "Bluetooth Unit-detection close." Then lit the "JBL Charge" (which comes with its already charged battery, nice touch), and after a few seconds the 2 devices are automatically synchronized.
Therefore, any music or video played on your mobile device will instantly amplified by the distance "JBL Charge", which you can place anywhere in the room, standing or flat. Guaranteed stunning effect.
Note that you can also, if you wish, connect the "JBL Charge" by old-fashioned jack (not supplied) to your mobile device.
The charge level of the powerful battery is indicated by three blue LEDs. When discharged is recharging the sector (decision taken provided to French and Anglo-Saxon, good idea when traveling). 12:00 official reading of autonomy!
In sound, you can adjust the volume easily with 2 + and - buttons. The sound is dassez good quality, especially the bass, very present with a dedicated HP on the side.
Otherwise there are two front tweeters, that give good sound but the effect stereo would be more convincing if lon could expel the 2 tweeters apart from one another, emphasizing the example
The output power is 10 watts, which is enough to add sound to a room.
The supplied protective cover is a bit narrow, not easy to store in the device.
I find that this device fulfills its role, with simplicity, only the price could be a bit more moderate.