... price 4.OEM & ODM welcome Portable Mini mp3 Speaker with SD TF MMC Card We are a professoal manufacturer of usb speaker,mini ... speaker, SD card speaker,MMC card speaker,TF card speaker,LED speaker,Ipod speaker Features:1.Can read SD card,U disk speaker.2.Portable SD card speaker ... lithium battery speaker.10.Plays MP3 format audio files from SD/MMC Card,U-Disk speaker.11.Power supply:USB Power12.Rated ...