Since I now do not have a suitable phone more, unfortunately I could test the headset briefly. The sound was no noise reduction good, but this is a negative, I noticed: If you switch the noise reduction during cycling, weakens it, unfortunately the sound of the air stream is not from (what I had actually originally hoped), but strengthened it in contrary even. But even without noise reduction can hear good music while cycling with the headset and the handset sit stable despite the unusually large type in the ear. Without wind, the noise reduction works correctly (tested at home with loud music), though not necessarily with clean sound result. Since only a Fast Port connection is available without stereo jack adapter, the headset can also be used, unfortunately only with the appropriate phones. Finally, I forgive 3/5 stars because this headset simply could not completely convincing and has more than one disadvantage. Due to the low price but the trend towards even goes 4/5 stars.