... sense design; portable, hanging portable design This mini speaker supports Micro SD/MMC, U disk,USB ... With it you can enjoy music anytime anywhere.Mini Speaker MP3 Player Amplifier Micro SD/MMC,USB Disk FM ... . Supports Line IN function, receiving the audio source from MP3, MP4, PC, Notebook, iPod, iPhone, etc. HiFi ... *11cm Good quality portable U disk card MP3 outdoor Morning subwoofer sound mini speaker