content: I bought these speakers for my iRiver MP3 player. I took this unit on vacation and am so glad I did. The sound was incredible. As good as my home stereo. Granted, you cannot crank the volume on this unit like a home stereo, but it was loud enough that you could hear it poolside from our 4th floor balcony. I also took it to the beach every day. Other reviewers stated that it didn't have much bass. I disagree. I adjusted the EQ settings on my MP3 player and got quality sound, bass and all. The only improvement I would like to see is the carrying bag, which fits the unit perfectly, but could use some additional room to store extra batteries or the MP3player/cord.