Specificationmini multimedia speaker with USB/SD card reader: 1.3.5mm Audio cable 2.USB cable 3.FM ... radio, earphone function Features: multimedia speaker with USB/SD card reader can link to iPad, MP3, MP4, Notebook, CD, DVD, Mobile ... single port7.Full function LED pilot lamp, build-in mp3,mp4,laptop,mobilephone as peripheral speaker. multimedia speaker with USB/SD card reader ...