Portable SD/TF/USB/MMC Cards MP3 Player/Speaker HOT 1)ROHS,CE,FCC 2)With USB and SD card interface 3)Support SD/TF card,USB Portable SD/TF/USB/MMC Cards MP3 Player/Speaker HOT1)ROHS,CE,FCC 2)With USB and SD card interface 3)Support SD/TF card,USB Product technical parameters:1. Application: notebook computers, mobile phones, MP3, MP4, DVD, CD, U plate and the audio equipment outside put.2. ...