Although I have had it for only a few days, I can say that I tried it on both a tablet and a mobile phone, of course. I connected 2 small speakers, and it worked well. In terms of quality, it is quite good, and I admit that I didn't expect much. Finally, if it were a little bigger, 3-4cm between the two ports, all the plugs would fit since it only takes the thinner ones that are above the jack, as we say.