I rarely write reviews, in this case, and of the occasion now mandatory and enthusiastic: The sound is for a device of this size and the price really good: Good sound, even in the upper speeds, only at full volume is a slight buzz and the bass have to be adjusted if necessary manually. Easy to use, was immediately recognized in Bluetooth mode from Mac. The iPhone, however, it is sometimes advisable to set the Bluetooth mode of attendance and ON-standing computer to OFF, sometimes causes confusion. Then finds the Iphone still not the JBL, then hold down and then it will come with the Iphone the power button for 2 seconds.. Battery life of about 4 hours. Unfortunately, not enough for my taste, but the unit also has a lot of power and therefore forgivable. And finally, last night was the box of the balustrade from the 4th floor (!!!) in a garden bed: it actually has nearly 30 METER camber and a slightly RAINY NIGHT survived! Thus: IMMEDIATELY BUY !!!