... /SD card slot Digital portable Mini speaker for Iphone, computer,CD, MP3 & Mp4 mini speaker, computer speaker, speaker,mini computer speaker, ... with new concept integral stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook ... Disk slot, USB connect*Output: RMS 6W(3W+3W) THD=10%*Frequency response: 150-18000HZ (±3DB)*Signal and noise ratio of ...