The main advantage of this bar is its small footprint. It is easy to carry anywhere. Despite this, the sound quality is very good. I was surprised by the power of the bass. I was also surprised by the fact that he speaks (in English). Switching on and off, connection, low battery, everything is reported. It is thus not necessary to watch the small LED at the rear. The manual is in English but the use is simple. On top, 1 buttons to play / pause, call answer / end (the device also makes hands-free kit with built-in microphone) and 2 buttons for volume, change songs (Bluetooth only). At the rear, an ON / OFF button the charging connector and a 3.5 mm jack to connect a non-Bluetooth device such as an iPod (cable supplied). The USB charging cable is also provided. Simply plug it into any charger. I am very happy with this speaker to share telephone calls and music with friends. It is part of our barbecue.