Portable speakers are designed primarily for convenience. There is nothing worse than having to give a presentation where you have to run power cords everywhere, to ensure that your old and bulky speakers provide the required sound. Instead, you can go and get a set of portable speakers for your PC to ensure that high quality sound is available, and you don’t even need to plug anything in!
These speakers are made by a huge number of brands including Macally, Logitech, Altec Lansing, Saitek and Fusion. There are a number of quality ones, but also a number that have been built poorly. What is important is the research process behind picking the right speakers. You can get small speakers which run off batteries that are able to create sound, but they are not very powerful. These are fine for an individual, but no good for providing sound for a whole group of people.
You need to consider what you want the speakers for, and then get something which will fulfill that. Sure, you can go and get a bigger set of speakers just in case, but they are a real pain to carry around, especially if you are going long distances, through multiple airports or simply having to walk long distances with them.
I particularly enjoy the Ifusion Portable Speakers as they come in a small case. If you imagine a small netbook case, this is very similar. You unzip the box and open it up, and several speakers pop up along with adaptors for various MP3 players and more. It looks tidy, helps keep your sound system protected and easy to carry and looks great too. With today’s technology finding speakers which suit your needs isn’t too hard, but make sure that you find reviews which say the model you want is good!