... function, and has digital display *Support for USB, SD,MIMC card playing MP3/MP4 player, portable mp3/mp4, USB drive mp3 ... mp3/mp4, mp3/mp4 Features *Support extra signal, USB/SD card switch directly. *Support radio function, and has digital display. *Has MP3 ... /MP4 WMA recode chip. *Support USB, SD, MIMC card playing. *Support up, down, adjust volume, EQ, play/pause, stop ...