There were wired ears, they broke. Looking for something to replace. I was ready to buy and very expensive ones, but the main criterion was that without a wire. I looked at a bunch of reviews and then came across these. I learned that there is their analogue wired and he went to everyone very much. Bought. Excellent ears. They turn off by themselves if there is no sound for a long time. However, I still don't understand how it works. In general, the ears are really good, I recommend.