on 20 June 2013
I thought this is the one with the ability to put songs on an SD card, but it's not. This point is not clear, but otherwise it does the job well - I wanted to use it for my PC and storing songs on an SD card was not necessary. Since there are many different versions around, be careful and make sure this is the one you want. No SD card slot on this one.
on 26 February 2013
I am amazed that such a rich sound can come out of a tiny speaker like this. Of course, it needs to be placed on the right surface to work properly but it's easy enough to experiment with this. Works great with my laptop, MP3 player and smart phone (although you do need a USB socket to be able to charge it).