The sound quality is good. While it is sensitive when it comes to "pop sounds". So, when one speaks a "P", beating out the audio waves, as if it were their life. This problem I have however resolved with a small cloth-wire tinkering. So just stretch a thin cloth in a metal ring and attach it with wire to the microphone. The cloth defused the air pressure, which you created in "pop-sounds", in which the cloth already intercepting the flow of air to and almost only the sound can be carried. So almost a pop filter in very small.
But even without the miniature pop protection homegrown sound quality is surprisingly good. Each sound is very clear fed into the computer. Although you can hear here and there that the tracks sound metallic, but this has its limits.
All in all, Speedlink not compare with large diaphragm mics like the "Studio C010" of "Fame", but for the few Euros that cost the clip-on microphone from SPEEDLINK, I expected much less. I am pleasantly surprised and can therefore only recommend buying.