I looked at the widely divergent Review in advance and already thought that it once again is at the bad reviews by consumers who are not familiar with the term value for money! The headphones (have 2 ordered) came to me very neatly unpacked before. To install the battery easy and it can also normal batteries are used. Here, however, falls on the labile fit the battery cover. More on this later. So, that is connected to the laptop and set up. Here is then dependent to hear from the headphone volume set on a light background noise. Youtube and searched a sonorous song. With the start of the song, the noise in no way was still to be heard. Rather outweigh the enthusiasm bez. of the sound. Clear tones and clean soft bass. OUTSTANDING! During automatic rockers of the head, we come back to the battery cover. This causes a slight rattling. So headphones down on cover, glue and disappeared a piece of self-adhesive fabric is rattling. Sort of like earlier in the Nokia phones :-)! Everything else is super. The headset is really easy, fits perfectly and not suppressed. During a tour through the house, there were no problems with the reception. And also the side lying on the pillow, including headset was pleasant. All in all you can recommend this product to 100% so.