I use the microphone input for a mono signal is output in stereo (Left Voice duplicates on the right Voice), good sound, nothing to report here
I use the output speaker (out front jack) sound good here too, nothing to say
To my surprise entry "line in" and "microphone" can not be used simultaneously, my aim was just to have two more entries on my computer, I think buying another in the future (I remove a star for this reason)
The case is very small contrary to what I thought, to recommend purchase!