Specificationmini multimedia speaker with USB/SD card reader: 1.3.5mm Audio cable 2.USB ... 3.FM radio, earphone function Features: multimedia speaker with USB/SD card reader can link to iPad, MP3, MP4, Notebook, CD ... , DVD, Mobile phone,IPOD,iPhone&iPhone 3G&4 can be charged when playing by plug in straightly. 1 ... ,mobilephone as peripheral speaker. multimedia speaker with USB/SD card reader