Have brought here in the offer for 149 Euro me the box. More than 200 euros I would not pay. Find all overpriced Bluetooth Speaker at the moment. For Box, unpacked and first time wow. Great design, made entirely of metal. Total noble. Then brought my S4 and paired with the box. Within seconds, stand connection. Music played. My God what's that? Only roar, too much bass. Box stood in the kitchen in a corner. That they do not like. Then next test outside on patio. Here now wow again. Outside it sounds really great. No more droning and great sound and really loud. For this purpose, it has also been built. Only I would like to also operate with me in the kitchen with pepairten mobile and Internet Radio in the operation. Property me then the PlayStore a Equilaizer app loaded and lo and behold it's yet. Bass properly reduced and the centers raised slightly. Now it sounds to me in the kitchen very well. The only thing I noticed as soon as the battery has lost about 50% is steadily decreasing the maximum volume. I liked that even nicht.Vermutlich to save your battery and to extend the term. Direct the battery compartment is opened once in the box to me to look at the battery. An almost ridiculous 2150ma / h 18650 battery comes to light. Ridiculous. In such a weather box belongs. a 2 Zeller. I am disappointed by the term marriage, I took the battery time to the chest. Shrink tubing carefully removed and looked at the battery. It is a Sanyo cell with 2150 mA / h. Very good cell, but unfortunately too little capacity. There are significantly more 18650 cells. Browsed the web and 18650B unprotected 3400 ordered a Panasonic NCR ma / h. At the old battery protection circuit carefully removed and re soldered it to the Panasonic. A matter of 5 minutes. Now I come to a term of more than 10 hours, and the max. Volume is reduced until much later. Can I recommend everyone who wants a longer duration of his boombox. The Panasonic battery you get for NEN 10ner in the bay. Am now completely satisfied with the Boombox. On the subject of apt-X codec. This standard does not support the Bommbox. Also does not need them. Have you connected to my phone time per jack. So I hear no difference. As it is not for real HiFi.