Operation and sound are perfect, however, the use of so his little quirks. And I can not say exactly whether it is on the headset or not rather to the Windows 8.1 used.
After completely trouble-free pairing with the PC, the headset transmits two times in playback devices list (right click on the speaker icon below link in the taskbar - menu item "playback devices"). Both devices were activated at me. However, no sound comes out of the headphones, unless you disable the internal speakers in the Playback Device list.
A Jabra device seems to be for the headset functionality, the other for pure headset functionality.
If you now deactivate the headset, the headset will remain active and the sound is really just for Skype or phone calls. If one then looks at films, the sound sucks (hence perhaps the many complaints here about the sound quality).
So:
1. Always turn off when using the Jabra PC with the internal speakers!
2. Activate the headset When Skype, the headphones off (Attention: With Skype you have additional settings in the Options - configure audio playback for the microphone, possibly with other programs such as Live Meeting, etc. Also, I have not tried).
3. watch or play When films, headphones enable for better sound.
Quality problems or wear I could not yet find use in 3 months.
Because of the inconvenience of activation / deactivation, there is a star deduction. Otherwise a super headphones / headset.
