EP640, why are we not met before?

After my four pairs of headphones have died from cable break in a month, I decided to try out Bluetooth models. After some search, I came across the EP640 August and was not disappointed. However, it should be clear that the headphones for + -40 are. And there are some: rich sound, not too much bass and perfectly clear. I'm in love. But I'm here not really picky unless it rattles or tinny sounds. And I HLRE Metal, like loud and to say: these headphones are the first who have not overridden. NFC I could not try, Weil's my phone has not, but otherwise it's simple enough. Once Bluetooth is on and headphones, both found within a second and connect automatically. Even if the headphones were previously connected to the laptop, where it goes similarly simple.

+ Outstanding sound in this price range
+ Long battery life (use regularly, were never empty)
+ Easy to use
+ Comfortable to wear
+ Long range (time to go into the next room is not a problem, but is related to the rendering device.)
+ Chic and high quality.

o: I have a feeling they are when folding not less ^^

-: So far nothing. Except that I had an on / off slide switch preferred.