Summary: The USB ports on these are very fragile. I have one speaker that's useless now because the charging port doesn't work, and I can't get it replaced via the warranty. The sound is good, but if you don't absolutely baby these things, they fall apart. I wasn't even that rough with them - they stayed in the carrying bag.
Summary: The X-Mini Max describes itself as "petite in size and massive in sound." As Inigo Montoya might say "this word 'massive' you keep using. I do not think it means what you think it means." Because the sound is inescapably tiny, tinny and shrill. To be pleasant, I'll say that the ceramic drivers offer impressive highs for speakers so small, but "superior bass performance" is laughable. There was no discernible bass to my ears.
Summary: Overall, these speakers are disappointing. I really didn’t expect to be saying that, given X-Mini’s reputation. Initially everything worked like a charm. The XAM15s were easy to set up and charge. They produced enough volume to fill a decently sized studio apartment. The sound was a bit tinny at first, but that was pretty easy to sort out with some fumbling around on my iPod equalizer. Having said that, any music with more than a little bass will be wasted on my XAM15’s.