I don't have an MP3 player as I find my phone with a 4gb card meets all my musical needs! However, the speakers on the phone itself are not quite up to the job of playing it back at the quality I'd like, so I thought I'd invest in some nice speakers for it. After a bit of research I went for the MDS-65 as it looks stylish and is a branded SE product so the quality should be high.
When I recieved it I was not disappointed! They are very easy to set up, you literally plug it in the mains (or load up with AA batteries if you're on the move), plug your phone in and you're away! The sound is rich and bassy and fills a room with sound very nicely indeed. It also charges your phone whilst it is plugged in which is very handy.
Overall I am very pleased with this product..it is not the cheapest out there but I think the quality is reflected in the price!