... quality & low price 4.OEM & ODM welcome Portable Mini mp3 Speaker with SD TF MMC Card We are ... a professoal manufacturer of usb speaker,mini speaker,active speaker,portable speaker,computer speaker,MP3 speaker,MP4 speaker ... Features:1.Can read SD card,U disk speaker.2.Portable SD card speaker for MP3,MP4,MP5 ... format audio files from SD/MMC Card,U-Disk speaker.11.Power supply:USB Power12.Rated power ...