Delivered the Bluetooth headset with a USB cable and an understandable instructions.
The latter is not really needed because all the buttons on the headphones are well labeled. Only for coupling to a device, you should know that the power button is held down 6 seconds. Otherwise, everything is easy to use. Volume plus and minus and track back and forth.
The speakerphone function works perfectly and the sound is noise-free.
Overall, the sound is still strong. Pralle downs, good midrange and treble. In overall impression minimal too dull. This falls to only a few pieces of music.
For this design, the headphones, by the way, very comfortable sitting, thanks to an adjustable strap, a well-balanced sound.
The pads are smaller as the ears, but close cleanly. They even conclude as well that you only take ambient noise minimal true.
I have the headphones now 8 hours continuously to left in order to test how long the battery holds out with music playback. Now he is from. 8 hours a pretty good value. Whereby this after repeated might still charge may change.
The build quality is really very valuable. Handsome plastic, superbly finished cushion. No obvious deficiencies. Everything fits neatly without gaps. The haptics speaks to me. Smooth clean materials. Here one can say clearly facing the price, this is the perfect performance.
For music, radio plays / books, with simultaneous accessibility thanks to the hands-free function, a super headphones.
My recommendation and like 5 star.
(Tested with a Sony Z2 & a Sony Tablet Z a Acer notebook)