In short: This device is perfect for listening to music. The microphone can probably forget. Bass Boost is fierce. Cable is not so easy to replace.
Pros:
+ Very good sound, even from minderwärtigen sources (hereby Galaxy Note 2, Google Music Player, without EQ)
+ Very good processing and optics
+ "Bass Boost" makes its name
+ Passive function in case of failure of the batteries with audio cable possible
+ Good connectivity
Meh:
~ Very comfortable, but also warming
Cons:
- Lt. Instructions for use at temperatures from 0 to 40 * C - winter ?!
- Very bad microphone (tested via Skype)
- Audio cable only theoretically replaceable
- Batteries are not interchangeable
A few details ...
Output Quality: very good. I notice virtually no difference between cable connection and Bluetooth! Without active bass boost all frequencies are perfectly, the bass and midtones are especially tired, but are in a pleasant balance to the entire spectrum. With Bass Boost enabled this balance is for me personally totally out of joint; and even for my taste, as a lover powerful bass! But I think anyone will find his pleasure in it already; Does that not for nothing "Extra Bass".
Bluetooth: Quick and easy to set up, if one reads the brief instructions. From about 3m, concrete wall and a lot of WiFi networks in the area there was very sporadic interruptions. However, the device starts the connection extremely quickly on (for about 1 second, if at all).
Microphone: ... we just forget that ever since one's inside. OK?
Comfort and support: Good! The headset does not slip, is stuck on the head, but without clinging too strongly. Although the ears does not lie directly on the extremely soft cushions, is a fast hot more than two hours at a time in well-heated rooms or in the summer maybe are not in it.
Peripherals: The audio connection is an enormale jack. Theoretically, one could as can connect any normal cable. But: The "Court" of the connection is so thin that only fits in the space provided cable exactly. This adds stability and support. Is this, however, get away or defective - the best of luck in finding a replacement. At Sony, I found no corresponding replacement cable today.
In addition, the batteries were interchangeable with previous models of Sony. This is now no longer seems to be the case. Permanently installed battery. Pity!