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.
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.
Summary: If you listen to music via ANYTHING that is Bluetooth enabled, DON'T BOTHER BUYING THESE SPEAKERS! I'd highly-highly recommend which is just an outstandingly easy and wonderful speaker for basically the same price point.
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.