I found these portable MP3 portable speakers and thought it would be great on a disc golf bag. I just got it today and got to play one round with it and it worked great! Its loud enough that you and some friends close by can here, but not too loud to talk over or to be annoying to other groups. Its rather cheap as well. Since I've only had one round with it I don't have any durability on it, but looks pretty good.
http://www.amazon.com/ISP110BLU-Portabl ... 808&sr=8-4
Hope this helps for anyone else that would like to play some music during the casual round.






