mini speaker 1.mobile,mp3,mp4,PC,IPOD and other audio speaker 2.one year warranty 3.fashionable design 4.different colors mini speakerItem no ... . 3. No need to shift among U disc/SD/MCC, speaker automatically read the first input media device, If first input ... /MCC, you need to take out SD/MCC card, then speaker can read MP3 music file from U Disc. 4."Volume ...