Should really pay attention to the fact that the level of the input signal is as high as possible in order to minimize the noise. So it is only in silence and quite high set volume to noise.
Negative struck me:
+ A quite filligraner volume control in the right ear cup
+ Although the base station indicates when the handset is compliant is in it, but not if the rechargeable batteries are Gelden, or when they are fully charged.
+ Exchange in the batteries frequently, I can imagine that the ear cups can no longer be used well into the receiver and lose their grip.
Positive struck me:
+ Easy handling
+ Comfortable fit
+ Three einstellbate transmission frequencies
+ Beautiful design and storage space in the base station.
I kept the headphones because I only bennutze him to watch TV at night to avoid disturbing other people. For HiFi audio results but I would resort to another product of AKG or Sennheiser.