The best headset I've tested.

This comment was originally written in English so I apologize for any Google Translate jokes.
Having considered a number of headphones and Bluetooth headsets, I am pleased to receive a free item for evaluation in exchange for an honest review.
The item is packed in a sturdy box, firmly held by a foam equipped Surround them. Under the insert is a set of different size earbuds and the ubiquitous USB - micro USB charging cable. On first appearances they look a little strange that, instead of the usual floppy wire cable there is a short, steep and loop between the headphones. As confusion at first ("how am I supposed to wear these?") This cable is a stroke of amazing design. One-loop and put on the back of the head with solid curved earphones, these phones are incredibly comfortable and there is absolutely no chance of them coming loose. I wore them listen to music while working for seven solid hours without any discomfort. Although, if I were a pony-tail (which loo are not likely, never), then it is possible that they are not very comfortable. They are perhaps a little heavier than other phones I've reviewed, but I think it reflects the quality of construction and, perhaps, is a consequence of the amazing sound quality and life of the battery.
All the controls are on the right earpiece, with the usual multi-function on the calling features / off / smartphone and volume up and down also handling control as usual track. The rubber buttons are easy to locate and fall easily to hand and to make or receive calls, your voice is clear (better than directly with the phone) and ambient noise is pretty well filtered.
The sound quality is amazing - comparable with the best headphones I've tested; deep bass well balanced, rich resources and clear treble tones. The battery lasts for centuries - still going strong after seven hours, after which the use of a refill took four hours. Bluetooth range is excellent, again on an equal footing with the life-size headphones I've tested, and when the signal is finally lost there is a soft chirp to let you know, after which the current track is interrupted.
To summarize, these are the best headphones I've tested to date. Well done, comfortable, a very secure fit, excellent sound quality, battery life and Bluetooth range. I often give my free items away after I have evaluated, but I keep these!