I did some research and bought an iMotion imT800 by Altec Lansing. I am blown away by the sound of this piece. Very strong bass. I just put the IP4 in the cradle and bring up Pandora and have most excellent sound. It was around $200 from Amazon. If you're looking for a small portable sound machine, check around on the web and read the reviews as I did. I'm very happy with it so far.........