Meanwhile, I have been able to use the microphone port. The speaker port is not working. This can happen with such adapters, but a really annoys me here: There lies no manual, no installation instructions. It is only noted that Windows XP and Vista compatible and Windows 7. Whether W8 is written in the stars. Deliver devices with no keyboard is annoying and kundenunfreundlich! Score one for the microphone input of the work, after all, a point for my question mail wurde- answered I did not still a manual and I think you can expect that these devices are self-explanatory and my problem not only Duch 5 messages can be solved!