Rocksteady XS Portable Bluetooth Stereo Speaker - Stylish & Rugged with Killer Sound Quality - Black
This is a really good addition for listening to music from your collection on a bluetooth equipped phone, tablet or computer.  I have used it with the Galaxy S3, Nexus 7 and a PC.  The sound is great.  The ability to throw it in a traveling bag and carry it on a trip and enjoying your music with a glass of wine in the mountains is fantastic.