White Portable Folding Stereo Speaker for AT&T Apple IPhone 3Gs 3rd Generation Smartphone Turn your MP3 player or phone to a stereo for everyone to enjoy your music Compact design and foldable are made for easy storage. Note: Your mp3 player may not dock straight if the 3.5mm Audio Input Jack in your mp3 player is at the bottom of the player. For use with: Universal 3.5mm plug MP3 Player