I was looking for a mini mixer so that I could plug in portable devices, I acquire first one in RadioShack, what a disappointment when I figured it out it used a battery, (a squared one) plus it was mono only, then I decided to go with the Behringer which came in working perfectly and in the optimal size, what I omitted is to double check if it had stereo output, the fact is no, there is no output, only mono, for mics. and others that require only that is a great working device, yet I was still in my search of a budget small sized mixer with stereo outputs, I found this in amazon and so far up to this point, it has worked great, I can have stereo output  (note: the mixer says 4 channels, but one of them is mono for a mic) three are stereo, yet it worked great for what I needed it for.