... /SD card slot Digital portable Mini speaker for Iphone, computer,CD, MP3 & Mp4 mini speaker, computer speaker, speaker,mini computer speaker, ... performance perfect.2. Mini audio box with new concept integral stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, iPhone, ... enjoy the charm of digital products at any time.*Audio Formats: MP3*With Micro SD and USB Disk slot, USB connect ...