... 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. ... , Nice acoustic fidelity5.Build-in flash memory(optional),can storage large quantity music and data6.Full function All ... speaker. multimedia speaker with USB/SD card reader